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GEOMETRY Please help me

GEOMETRY Please help me-example-1

1 Answer

5 votes

Answer:

First option.

Explanation:

In this case you need to remember that an angle formed by two intersecting chords is equal to the sum of the intercepted arcs divided by 2. This is:


Angle\ formed\ by\ two\ intersecting\ chords=(1)/(2)(Sum\ of\ intercepted\ arcs)

You can identify in the figure that the angle ∠1 is an angle formed by two intersecting chords. Therefore, since the intercepted arcs are SP and QR, you can say the following:


m\angle 1=\frac{1}2}(mSP+mQR)

You can observe that this matches with the first option.

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