Question

The figure below shows two triangles EFG and KLM.

Answer 1

Which step can be used to prove that triangle EFG is also a right triangle?

Use Pythagorean theorem to prove that KL is equal to c.

Prove that the ratio of EF and KL is greater than 1 and hence the triangles are similar by AA postulate.

Prove that the sum of the squares of a and c is greater than square of b.

Prove that the sum of the squares of a and b is greater than square of c.

Answer 2

Use Pythagorean theorem to prove that KL is equal to c.

Answer 3

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