Question

What is the value of angle 1?

Answer 1

The value of angle 1 is 128°

Explanation:

Angle on a straight line is 180°

Angle in a triangle is 180°

For the angle in triangle:

76° + 52° + x° = 180°

x = 180° - 128°

x = 52°

"x" is on a straight line with angle 1

Therefore,

52° + angle 1 = 180°

angle 1 = 180° - 52°

angle 1 = 128°

Answer 2

128

Explanation:

a triangle has 180 degrees so 180 -76=104

104-52=52

one flat angle is also 180 so 180-52=128 degrees