Question

Find the value of x in the following figure. Note: The figure is not drawn to scale. x = ____a0°

Answer 1

x = 40

Explanation:

Angles in a triangle add up to 180 degrees.

Let y be the missing angle.

75 + 65 + y = 180

y = 180 - 75 - 65

y = 40

Vertically opposite angles are equal.

x = y

x = 40

Answer 2

x= 40

Explanation:

The sum of the angles in a triangle is 180

75+ 65+ unknown = 180

140 + unknown = 180

unknown = 180- 140

unknown = 40

unknown = x because they are vertical angles and vertical angles are equal

40 =x