Question

Which math sentence can be used to determine if this triangle is a right triangle?

Answer 1

Answer:

B .$(20)^2+(21)^2=(29)^2$

Step-by-step explanation:

We are given that

Three sides of given triangle are 21, 20 and 29.

If a triangle is right triangle, the triangle satisfied the pythagorous theorem.

Pythagorous theorem:

$(hypotenuse)^2=(base)^2+(Perpendicular\;side)^2$

$(29)^2=841$

$(20)^2+(21)^2=400+441=841$

Hence , $(29)^2=(20)^2+(21)^2$

Answer: B .$(20)^2+(21)^2=(29)^2$

Answer 2

A^2 + b^2 = c^2.....a and b are the legs and c is the hypotenuse

so u would use : 20^2 + 21^2 = 29^2