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32 votes
32 votes
Find the measure of the indicated angle.

Find the measure of the indicated angle.-example-1
User Gadam
by
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2 Answers

23 votes
23 votes

Answer:

∠? = 86°

Explanation:

The two dashes on the sides of the triangle tell us that this is an isosceles triangle. An isosceles triangle has 2 congruent sides and one side that is different. The same goes for its angles. The angle opposite to these same sides are also the same. So the angle across from ∠47 is also 47°.

All the angles in a triangle add up to 180°, so all you have to do to find ∠? is to subtract 47 x 2 from 180:

180 - 47 - 47 = 86°

Hope this helps! Best of luck <3

User Bergrebell
by
2.7k points
21 votes
21 votes

Answer:

90°

Explanation:

User Jamie McAllister
by
2.8k points