Question

Given the diagram, state whether you can reach the conclusion shown.

$m\angle AOC=90$

Short answer

We cannot conclude that $\mathit{m}\mathbf{\angle }\mathit{A}\mathit{O}\mathit{C}\mathbf{=}\mathbf{90}$.

Step-by-step solution

Step 1. Observe the given diagram.

Step 2. Highlight the ∠AOC in the given diagram.

Step 3. Explain whether you can reach given conclusion

We may not make any assumptions regarding the measures of angles unless they are specified. Also, there is no small square to indicate that it is a $90°$angle.