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Measure of angle A???

Measure of angle A???-example-1
User John Vint
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Letter A. Which is letter 60 degrees. You can tell since it’s not a right angle, which gets rid of 90 degrees. It’s not 30 degrees because that would be too small. And it’s not 180 degrees because it’s too big.
User KpsLok
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4 votes

Answer:

A

Explanation:

The triangle shown has all 3 sides equal in length, hence it is an equilateral triangle.

A property of equilateral triangles is the angles are congruent.

The sum of the 3 angles = 180°, hence the measure of each angle is


(180)/(3) = 60° → A


User Dirk N
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