Which side lengths form a right angle? Choose all answers that apply:

A) 3, square root 27, 6
B) 8, 15, 17
C) 5, 5, square root 50

B and C

Step-by-step explanation:

Using the Pythagorean theorem a²+b²=c², those are the correct answers

a. 74 degrees

step-by-step explanation:

because the lines through the side and the box in the corners shows that these are congruent triangles and since they are mirrored the 37 degrees is also mirrored so the answer is 37 * 2 which is 74.