Question

Which of the following is a right triangle?

55°
70°
55
Triangle A
OA. Triangle D
OB. Triangle A
O C. Triangle C
OD. Triangle B
24°
45°
SAA
90°
45
Triangle C
30°
126
Triangle B
60°
60
60°
Triangle D

Answer 1

Explanation:

A right triangle is a triangle that has one angle that measures 90 degrees. Based on the information provided, the following triangles are right triangles:

Triangle A - OA. 55° and 70° are not right angles

Triangle B - OB. 30° and 60° are not right angles

Triangle C - O C. 45° and 45° form a right angle

Triangle D - OD. 60° and 60° form a right angle.

SAA is a mnemonic for solving the triangle, not a triangle itself

24°, 45°, and 126° are not angles that form a triangle as the sum of all angles in a triangle is 180.