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What is the measure of angle A in the triangle?

What is the measure of angle A in the triangle?-example-1
User Vmj
by
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1 Answer

3 votes

Answer:

Angle A = 50°

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

User Kelvin Sherlock
by
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