Geometry | Unit 4 | Lesson 2: Half a Square | Practice Problems

Find the lengths of the legs.

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What is the length of the diagonal?

A square has a diagonal of length 5 cm. What is the area of the square?

Clare and Han are discussing how to find the missing lengths. Clare says she is using similarity. Han says he is using the Pythagorean Theorem. Do you agree with either of them? Show or explain your reasoning. Find the missing sides.

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Determine if each statement must be true, could possibly be true, or definitely can't be true. Explain or show your reasoning. Isosceles triangles are similar. Equilateral triangles are similar.