Question

The sum of the angle measures of a quadrilateral is 360 degrees find the value of x

Answer 1

X = 120°

60°, 60°, 120°, 120°

Explanation:

we add all the angles inside the quadrilateral and equate to 360°

1/2x + 1/2x + X + X = 360°

3x = 360°

X = 120°

For angle measures we simply insert x back in the quadrilateral and calculate the values

1/2x = 1/2 x 120

= 60°.

X = 120°

now arranging from the smallest to to the highest we get

60°, 60°, 120°, 120°