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31 January, 19:44

An equilateral triangle has three equal angles.

Which equation could be used to find the

measure, m, of one angle

A 180 + 3 = m

B 3 * 180 = m

C 180 - 3 = 180

D 180 : 3 = m

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Answers (1)
  1. 31 January, 23:03
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    D. 180 : 3 = m

    Step-by-step explanation:

    The sum of the angles in a triangle adds up to 180°.

    Since equilateral triangles have 3 equal angles,

    sum of the angles in the triangle = 3m

    3m=180°

    m = 180° : 3

    m=60°

    Thus, 180:3=m
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