10
Answer: DSet 2: Triangles (Beginner)
Explanation
PROBLEM
A triangle has angles of 59 degrees and 58 degrees. What is the third angle?
A triangle has angles of 59 degrees and 58 degrees. What is the third angle?
A.
61
B.
65
C.
66
D.✓ Correct
63
Detailed Explanation
Choice D is the best answer. Third angle = 180 - 59 - 58 = 63 degrees
Why others are wrong:
A: 61 is incorrect because it does not satisfy the equation.
B: 65 is incorrect because it does not satisfy the equation.
C: 66 is incorrect because it does not satisfy the equation.
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