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22-12-2020
Mathematics

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What is the measure of angle A in the triangle?

What is the measure of angle A in the triangle class=

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22-12-2020

Answer:

Angle A = 50°

Step-by-step explanation:

(2x - 10) + (x + 30) + 70 = 180

3x = 180 + 10 - 30 - 70

3x = 90

x = 90/3

x = 30

A = 2x -10

A = (2 * 30) - 10

A = 60 - 10

A = 50

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