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If ZABC measures 90°, what is the measure of Ac?O A. 180°90°O B. 45°АBO C. 270°O D. 90°D

If ZABC measures 90°, what is the measure of Ac?O A. 180°90°O B. 45°АBO C. 270°O D-example-1
User Latka
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1 Answer

5 votes

We have to use the central angle theorem, which states that an arc and its central angle are congruent.


\begin{gathered} AC=m\angle ABC \\ AC=90 \end{gathered}

Hence, the answer is D. 90°.

User Matheus Moreira
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