3
Answer: ASet 3: Triangles
Explanation
Olivia is designing a triangular kite. Two angles measure 71° and 83°. Find the measure of the remaining angle.
A.✓ Correct
26
B.
13
C.
16
D.
36
Detailed Explanation
Choice A is correct. The sum of angles in a triangle is always 180°. 1. Two known angles: 71° + 83° = 154° Third angle: 180° - 154° = 26° Therefore, the third angle is 26°.
Key Steps:
•
The correct answer is 26
Why others are wrong:
B: This would give an incorrect result. Choice B is incorrect and may result from a calculation error.
C: This would give an incorrect result. Choice C is incorrect and may result from a calculation error.
D: This would give an incorrect result. Choice D is incorrect and may result from a calculation error.
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