Find the measure of angle x in the figure below
a) 15°
b) 25°
c) 30°
d) 60°

Most Likely C

Step-by-step explanation:

Using the triangle sum proof:

The blank angle measure and where "X" is are vertical angles.

Vertical angles have the same measurement.

x should be equal to 30°.

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

lockers 1, 4, 9, 16, 25, 40, and 49 are open

i ran through it by the other answer is wrong