Q. 6. △ABC is an isosceles triangle. 6 .14. Given: ∠5≅∠6Prove: △ABC is an isosceles triangle.Proof:335
Identify Given & Prove: Identify the given information and what needs to be proven.Given: \angle 5 \(\newlineot\approx \angle 6\), we need to prove that △ABC is an isosceles triangle.
Recall Isosceles Triangle: Recall the definition of an isosceles triangle. An isosceles triangle has at least two sides that are equal in length, which also means at least two angles are equal.
Use Given Information: Use the given information to relate it to the definition of an isosceles triangle.Since ∠5=∠6, it means two angles in the triangle are congruent.
Determine Opposite Sides: Determine which sides are opposite to the congruent angles.The sides opposite to ∠5 and ∠6 must be equal in length because angles opposite to equal sides in a triangle are equal.
State Conclusion: State the conclusion based on the previous steps.Since the sides opposite to ∠5 and ∠6 are equal, triangle ABC is an isosceles triangle.