9
Answer: CSet 5: Triangles (Beginner)
Explanation
PROBLEM
A triangle has angles of 35 degrees and 51 degrees. What is the third angle?
A triangle has angles of 35 degrees and 51 degrees. What is the third angle?
A.
92
B.
97
C.✓ Correct
94
D.
91
Detailed Explanation
Choice C is the best answer. Third angle = 180 - 35 - 51 = 94 degrees
Why others are wrong:
A: 92 is incorrect because it does not satisfy the equation.
B: 97 is incorrect because it does not satisfy the equation.
D: 91 is incorrect because it does not satisfy the equation.