# Congruency of Isosceles Triangles: Proving the Theorem

Instructions:

question 1 of 3

### If two sides of a triangle are congruent, then which of the following statements MUST be true?

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### 2. In an isosceles triangle, which of the following are congruent?

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An isosceles triangles is one in which two of the sides are congruent, but how can you tell? This quiz/worksheet combo will ask you questions about the proofs relating to the sides and angles of an isosceles triangle.

## Quiz & Worksheet Goals

Find out how well you understand the following:

• The names of the sides and angles of an isoceles triangle
• Proof of congruent sides
• Proof of congruent angles
• Statements about a triangle that must be true based on a given image

## Skills Practiced

This quiz and worksheet will help to test the following skills:

• Reading comprehension - ensure that you draw the most important information from the related lesson on proof for congruency
• Problem solving - use acquired knowledge to solve practice problems relating to isosceles triangles
• Interpreting information - verify that you can read information regarding the sides and angles of isosceles triangles and interpret it correctly