If = 143°, and = 39°, what is m∠DEC? 88° 89° 90° 91°

asked Jul 1, 2019 70.1k views

4 votes

If = 143°, and = 39°, what is m∠DEC?
88°
89°
90°
91°

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3 votes

Answer: the correct answer for odyssey ware is 91 i don’t know what dude is on above me but 91 is correct

Explanation:

Synxmax answered Jul 2, 2019

7.4k points

4 votes

The answer is 89

arc DC-arc AB divided by 2 gets you the right answer.

Bresson answered Jul 6, 2019

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