In circle B, m DAC = 60°. Solve for v ifmDC = (7x – 42)°. If necessary, round your answer to the nearest tenth.

Manu K Mohan asked May 17, 2023

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9 votes

In circle B, m DAC = 60°. Solve for v ifmDC = (7x – 42)°. If necessary,

round your answer to the nearest tenth.

Manu K Mohan asked May 17, 2023

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26 votes

Answer: 23.1

Explanation:

By the inscribed angle theorem, we know the measure of arc DC is 120 degrees. So, we can set 120=7x-42.

162 = 7x

x = 162/7, which is about 23.1

NickMcB answered May 24, 2023

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