Question

The figure below shows two triangles EFG and KLM.




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

Prove that a + b is greater than c in triangle EFG so c2 = a2 + b2.

Prove that the sum of the squares of a and c in triangle EFG is greater than square of b in triangle KLM.

Prove that the sum of the squares of a and b in triangle KLM is greater than square of c in triangle EFG.

Prove that KL = EF so in triangle KLM c2 = a2 + b2 which makes triangle EFG a right triangle.

Answer 1

i think its either a or d

Answer 2

last option is most closer

Answer 3

the reason is if you have KL=EF, then angle opposite to side KL , i.e. angle M = 90 . , but we do have KL=EF, i.e angle opposite to side EF will be equal to angle M =90, thus we have angle G = 90 and a right angle triange EFG : )

Answer 4

thank youu :)