# Working with arcs and central angles sample question

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What is the answer if PR is the diameter of circle S? If the measure of angle P is 25 then what is the measure of QR?

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#### Solution Preview

We need to find the length QR, given that the diameter of the circle PR= s

Consider Triangle PQR,

Given that ...

#### Solution Summary

The arcs and central angles for sample questions are examined.

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