a circular railroad-crossing sigh has a radius of 15 inches. which measurement is closest to the area of the sigh in square inch
1 answer:
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Answer:
A
Step-by-step 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
= 60° → A