For example: What is the surface area of the triangular prism?

**Solution:**

The above net has 2 triangles and 3 rectangles.

Area of first triangle = ½*b*h = ½*16*15 = 120 ft^2

Area of second triangle = Area of first triangle = 120 ft^2

Area of left rectangle = l*w = 17*14 = 238 ft^2

Area of middle rectangle = l*w = 16*14 = 224 ft^2

Area of right rectangle = l*w = 17*14 = 238 ft^2

Surface area of the triangular prism = Composite area of 2 triangle and 3 rectangles

= 120 + 120 + 238 + 224 + 238

= 940

Therefore, the surface area of the triangular prism is 940 ft^2.

For example: What is the surface area of the triangular prism?

**Solution:**

The above net has 2 triangles and 3 rectangles.

Area of first triangle = ½*b*h = ½*16*15 = 120 ft^2

Area of second triangle = Area of first triangle = 120 ft^2

Area of left rectangle = l*w = 17*14 = 238 ft^2

Area of middle rectangle = l*w = 16*14 = 224 ft^2

Area of right rectangle = l*w = 17*14 = 238 ft^2

Surface area of the triangular prism = Composite area of 2 triangle and 3 rectangles

= 120 + 120 + 238 + 224 + 238

= 940

Therefore, the surface area of the triangular prism is 940 ft^2.

For example: What is the surface area of the triangular prism?

**Solution:**

The above net has 2 triangles and 3 rectangles.

Area of first triangle = ½*b*h = ½*16*15 = 120 ft^2

Area of second triangle = Area of first triangle = 120 ft^2

Area of left rectangle = l*w = 17*14 = 238 ft^2

Area of middle rectangle = l*w = 16*14 = 224 ft^2

Area of right rectangle = l*w = 17*14 = 238 ft^2

Surface area of the triangular prism = Composite area of 2 triangle and 3 rectangles

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