Question

Solve for x. 53° 78° (10x - 1)º

Answer 1

Answer:

Value of x = 5

Explanation:

Given:

Angle 1 = 53°

Angle 2 = 78°

Angle 3 = (10x - 1)°

Find:

Value of angle x

Computation:

Using angle sum property of triangle

⇒ Angle 1 + Angle 2 + Angle 3 = 180

⇒ 53 + 78 + (10x - 1) = 180

⇒ 131 + 10x - 1 = 180

⇒ 10x + 130 = 180

⇒ 10x = 180 - 130

⇒ 10 x = 50

⇒ x = 50 / 10

⇒ x = 5

Value of x = 5