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

Question

asked Aug 15, 2022 41.4k views

1 Answer

Oluwatoyin · Answer 1 · 2022-08-22T12:51:45+0000

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°