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3 years ago

In △ABC , m∠A=x° , m∠B=(3x+30)° , and m∠C=2x° . What is the measure of ∠B ?

Mathematics

1 answer:

Xelga [282]3 years ago

3 0

Answer: 105

Step-by-step explanation:

Angle A, B, and C all add up to 180 degrees. So you combine the equations and get “6x+30=180” so x=25 and then you plug 25 for x into the equation for angle B and you get “75+30” which equals “105”.

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Work Shown:

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