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What is angle a and c if b is 63 degrees? You will get 100 points for answering please help

What is angle a and c if b is 63 degrees? You will get 100 points for answering please-example-1

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7 votes

Answer:

Angle A measures 76°

Explanation:

The three interior angles of a triangle will always equal 180. Therefore:


(63)+(x+7)+(2x+8)=180

Solve for x. Add and combine like terms:


78+3x=180

Subtract 78 from both sides:


3x=102

Divide both sides by 3. So, the value of x is:


x=34

Angle A is given by:


m\angle A=2x+8

Since we know that x = 38:


m\angle A=2(34)+8=76

Angle A measures 76°

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