Question

TELL WHETHER THE TRIANGLE IS A RIGHT TRIANGLE

Answer 1

7. No. 8. Yes.

Explanation:

Use the pythagorean theorem.

`a^(2) + b^2 = c^2`

Where a and b are legs and c is the hypotenuse.

7.

`3^2 + 7^2 \\eq √(57)^2 \\9 + 49 = 58 \\eq 57`

So it isn't a right triangle.

8.

`(5√(5))^2 = 11^2 + 2^2\\(√(125))^2 = 121 + 4\\125 = 125`

So this is a right triangle.

Answer 2

use Pythagorean theorem

Explanation:

:)

a^2+b^2=c^2 if equal triangle is right!