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4 years ago

10

Given the diagram below, what is mA?

2 answers:

SIZIF [17.4K]4 years ago

4 0

For a polygon of n sides, the sum of the measures of the interior angles is 180(n - 2).

This polygon has 4 sides, so the sum of the measures of the interior angles is

180 * (4 - 2) = 180 * 2 = 360

m<A + 110 + 110 + 70 = 360

m<A + 290 = 360

m<A = 70

sergeinik [125]4 years ago

3 0

Answer: 70

Step-by-step explanation:

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