Question

In Triangle A B C, what is the value of x? Triangle A B C. Angle A is (10 x minus 10) degrees, angle B is (8 x) degrees, angle C is (10 x + 8) degrees. 5.5 6.5 55 65

Answer 1

6.5

Explanation:

Sum of three angles of triangle = 180

10x - 10 + 8x + 10x + 8 = 180

28x - 2 = 180

28x = 180 + 2

28x = 182

x = 182/28

x = 6.5

Answer 2

x = 6.5

Explanation:

Since all angles in a triangle adds up to 180°, we have:

10x - 10 + 10x + 8 + 8x = 180

28x - 2 = 180

28x = 182

x = 182/28 or 6.5