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Math Problems
Grade 8
Circles: word problems
The diameter of a circle is
94
94
94
miles. What is the circle's area?
\newline
Use
π
≈
3.14
\pi \approx 3.14
π
≈
3.14
and round your answer to the nearest hundredth. square miles
\newline
Submit
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The radius of a circle is
11
millimeters
11\,\text{millimeters}
11
millimeters
. What is the circle's area?
\newline
Use
π
≈
3.14
\pi \approx 3.14
π
≈
3.14
and round your answer to the nearest hundredth.
\newline
square millimeters
\text{square millimeters}
square millimeters
\newline
Submit
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The radius of a circle is
24.6
24.6
24.6
feet. What is the circle's area?
\newline
Use
π
≈
3.14
\pi \approx 3.14
π
≈
3.14
and round your answer to the nearest hundredth. square feet
\newline
Submit
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The diameter of a circle is
80.6
80.6
80.6
feet. What is the circle's area?
\newline
Use
π
≈
3.14
\pi \approx 3.14
π
≈
3.14
and round your answer to the nearest hundredth. square feet
\newline
Submit
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The diameter of a circle is
86
86
86
inches. What is the circle's area?
\newline
Use
π
≈
3.14
\pi \approx 3.14
π
≈
3.14
and round your answer to the nearest hundredth.
\newline
square inches
\text{square inches}
square inches
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The radius of a circle is
6
meters
6 \, \text{meters}
6
meters
. What is the circle's area?
\newline
Use
π
≈
3.14
\pi \approx 3.14
π
≈
3.14
and round your answer to the nearest hundredth.
\newline
square meters
\text{square meters}
square meters
\newline
Submit
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The diameter of a circle is
2
2
2
feet. What is the circle's area?
\newline
Use
π
≈
3.14
\pi \approx 3.14
π
≈
3.14
and round your answer to the nearest hundredth.
\newline
square feet
\newline
Submit
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The diameter of a circle is
36
36
36
feet. What is the circle's area?
\newline
Use
π
≈
3.14
\pi \approx 3.14
π
≈
3.14
and round your answer to the nearest hundredth.
\newline
_____
square feet
\text{square feet}
square feet
\newline
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The radius of a circle is
1
millimeter
1\,\text{millimeter}
1
millimeter
. What is the circle's area?
\newline
Use
π
≈
3.14
\pi \approx 3.14
π
≈
3.14
and round your answer to the nearest hundredth.
\newline
square millimeters
\text{square millimeters}
square millimeters
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Question
\newline
Watch Video
\newline
Show Examples
\newline
In
△
P
Q
R
\triangle PQR
△
PQR
,
p
=
590
cm
p = 590 \, \text{cm}
p
=
590
cm
,
∠
Q
=
10
3
∘
\angle Q = 103^\circ
∠
Q
=
10
3
∘
and
\newline
∠
R
=
2
0
∘
\angle R = 20^\circ
∠
R
=
2
0
∘
. Find the area of
\newline
△
P
Q
R
\triangle PQR
△
PQR
, to the nearest
1
0
th
10^{\text{th}}
1
0
th
of a square centimeter.
\newline
Answer Attempt
1
1
1
out of
2
2
2
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In
△
E
F
G
\triangle EFG
△
EFG
,
e
=
47
e=47
e
=
47
cm,
∠
E
=
3
4
∘
\angle E=34^\circ
∠
E
=
3
4
∘
and
∠
F
=
1
2
∘
\angle F=12^\circ
∠
F
=
1
2
∘
. Find the area of
△
E
F
G
\triangle EFG
△
EFG
, to the nearest square centimeter.
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Circle
F
F
F
is shown with a diameter of
15
15
15
centimeters
(
e
x
t
c
m
)
( ext{cm})
(
e
x
t
c
m
)
. Which is the area of circle
F
F
F
? Use
π
=
3.14
\pi=3.14
π
=
3.14
.
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A cone has a slant height of
8
in
8\,\text{in}
8
in
and the radius of the base is
3
in
3\,\text{in}
3
in
. What is the lateral area, in square inches? Use
π
=
3.14
\pi=3.14
π
=
3.14
. Round your answer to the nearest hundredth.
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ometry/unit/
9
9
9
/lesson/
8
8
8
\newline
Coursework
\newline
Edrgent wall
\newline
9
9
9
.
8
8
8
.
10
10
10
Check Your Understanding
\newline
A cone has a slant height of
8
in
8\,\text{in}
8
in
and the radius of the base is
3
in
3\,\text{in}
3
in
. What is the lateral area, in square inches? Use
π
=
3.14
\pi=3.14
π
=
3.14
, Round your answer to the nearest hundredth.
Get tutor help
The radius of a quarter circle is
13
13
13
miles. What is the quarter circle's area?
\newline
Use
π
≈
3.14
\pi \approx 3.14
π
≈
3.14
and round your answer to the nearest hundredth.
\newline
square miles
\newline
Submit
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V lanskem letu je podjetje ustvarilo
1198515
1198515
1198515
evrov prihodkov od prodaje izdelkov na trgu. Podjetje ima
213917
213917
213917
evrov osnovnih sredstev, katerih zmogljivost izkori\v{s}\v{c}a
72
%
72\%
72%
. Kak\v{s}nen je potencialni prihodek od prodaje v primeru popolnega izkori\v{s}\v{c}anja zmogljivosti? Predpostavite, da je mogo\v{c}e dose\v{c}i
100
%
100\%
100%
izkoristek.
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Critical Thinking
\newline
& Problem Solving
\newline
Toy rubber balls are packaged in a cylinder that holds
3
3
3
balls. The diameter of each ball is
\newline
5.3
cm
5.3\,\text{cm}
5.3
cm
. Find the volume of the cylinder. Use
3.14
3.14
3.14
for
\newline
π
\pi
π
.
\newline
The volume of the cylinder is about
\newline
□
cm
3
\square\,\text{cm}^3
□
cm
3
.
\newline
(Round to the nearest tenth as needed.)
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3
3
3
.
03
03
03
Quiz: Volumes of Cylind
\newline
Calculator
\newline
What is the volume of a cylinder with a radius of
3
3
3
feet and a height of
4
4
4
feet?
\newline
Use
3.14
3.14
3.14
for pi.
\newline
Enter your answer in the box
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3
3
3
.
03
03
03
Quiz: Volumes of Cyling
\newline
Calculator
\newline
What is the volume of a cylinder with a radius of
3
3
3
feet and a height of
4
4
4
feet?
\newline
Use
3
3
3
.
14
14
14
for pi.
\newline
Enter your answer in the box
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The length and width of a rectangle are consecutive integers. The perimeter of the rectangle is
98
98
98
centimeters. Find the length and width of the rectangle.
\newline
Width
=
□
centimeters
Length
=
□
centimeters
\text { Width }=\square \text { centimeters } \quad \text { Length }=\square \text { centimeters }
Width
=
□
centimeters
Length
=
□
centimeters
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Find the volume of a right circular cone that has a height of
3
3
3
.
1
1
1
in
\text{in}
in
and a base with a diameter of
6
6
6
.
6
6
6
in
\text{in}
in
. Round your answer to the nearest tenth of a cubic inch.
\newline
Answer:
in
\text{in}
in
3
^{3}
3
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Find the volume of a right circular cone that has a height of
12.5
c
m
12.5 \mathrm{~cm}
12.5
cm
and a base with a diameter of
9.1
c
m
9.1 \mathrm{~cm}
9.1
cm
. Round your answer to the nearest tenth of a cubic centimeter.
\newline
Answer:
c
m
3
\mathrm{cm}^{3}
cm
3
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Find the volume of a right circular cone that has a height of
7.4
c
m
7.4 \mathrm{~cm}
7.4
cm
and a base with a radius of
8.1
c
m
8.1 \mathrm{~cm}
8.1
cm
. Round your answer to the nearest tenth of a cubic centimeter.
\newline
Answer:
c
m
3
\mathrm{cm}^{3}
cm
3
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Find the volume of a right circular cone that has a height of
13.3
f
t
13.3 \mathrm{ft}
13.3
ft
and a base with a diameter of
9.4
f
t
9.4 \mathrm{ft}
9.4
ft
. Round your answer to the nearest tenth of a cubic foot.
\newline
Answer:
f
t
3
\mathrm{ft}^{3}
ft
3
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Find the volume of a right circular cone that has a height of
18.2
f
t
18.2 \mathrm{ft}
18.2
ft
and a base with a diameter of
18.8
f
t
18.8 \mathrm{ft}
18.8
ft
. Round your answer to the nearest tenth of a cubic foot.
\newline
Answer:
f
t
3
\mathrm{ft}^{3}
ft
3
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The hypotenuse of a right triangle measures
17
c
m
17 \mathrm{~cm}
17
cm
and one of its legs measures
8
c
m
8 \mathrm{~cm}
8
cm
. Find the measure of the other leg. If necessary, round to the nearest tenth.
\newline
Answer:
□
\square
□
c
m
\mathrm{cm}
cm
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One of the legs of a right triangle measures
15
c
m
15 \mathrm{~cm}
15
cm
and its hypotenuse measures
17
c
m
17 \mathrm{~cm}
17
cm
. Find the measure of the other leg. If necessary, round to the nearest tenth.
\newline
Answer:
□
\square
□
c
m
\mathrm{cm}
cm
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One of the legs of a right triangle measures
8
c
m
8 \mathrm{~cm}
8
cm
and the other leg measures
15
c
m
15 \mathrm{~cm}
15
cm
. Find the measure of the hypotenuse. If necessary, round to the nearest tenth.
\newline
Answer:
□
\square
□
c
m
\mathrm{cm}
cm
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The radius of a semicircle is
3
3
3
yards. What is the semicircle's area?
\newline
Use
π
≈
3.14
\pi \approx 3.14
π
≈
3.14
and round your answer to the nearest hundredth.
\newline
square yards
Get tutor help
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