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Find M Please help!!!! Last question worth 10 points!

Find M Please help!!!! Last question worth 10 points!-example-1
User Ammadu
by
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1 Answer

3 votes

Answer:

<A = 75degrees

Explanation:

From the triangle given;

arcDA + arc AD + arcBD = 360 degrees

131 + 79 + arcBD = 360

210 + arcBD = 360

arcBD = 360 -210

arcBD = 150 degrees

Since the angle at the vertex <A is half that at the arc BD, hence;

<A = 1/2 arcBD

<A = 1/2 * 150

<A = 75degrees

Hence the measure of angle A s 75degrees

User Shahid Iqbal
by
8.6k points

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