Based on the side lengths given (a, b, and c), which triangles are right triangles?
A)a=18
b=24
c=42

B)a=33
b=56
c=65

C)a=19
b=180
c=181

D)a=3
b=4
c=7

B & C

Step-by-step explanation:

Use the Pythagorean Theorem:   a^2 + b^2 = c^2

A) 18^2 + 24^2 = 2,088   |   42^2 = 1,764     [NOT A]

B) 33^2 +56^2 = 4,225   |   65^2 = 4,225     [B IS CORRECT]

C) 19^2 + 180^2 = (32,761) = 181^2 = (32,761)     [C IS CORRECT]

D) 3^2 + 4^2 = 25  |   7^2 = 49     [NOT D]

I hope this helped you ! In return, please deem this the most brainliest answer.

21

step-by-step explanation:

answer: i think it is (1,-2)