Respuesta :

The square mark indicates that it is a right angle which is 90 degrees.
x+2x+x+10=90
4x+10=90
-10 -10
4x=80
Divide both sides by 4
x= 20

The angles x°, 2x°, and (x + 10)° are complementary angles. Then the value of the variable x will be 20°.

What is an angle?

The angle is the distance between the intersecting lines or surfaces. The angle is also expressed in degrees. The angle is 360 degrees for one complete spin.

Complementary angle - Two angles are said to be complementary angles if their sum is 90 degrees.

The angles x°, 2x°, and (x + 10)° are complementary angles.

Then the sum of the angles x°, 2x°, and (x + 10)° will be 90°.

Then the equation will be

x° + 2x° + (x + 10)° = 90°

Simplify the equation, then the value of x will be

4x + 10 = 90

      4x = 80

        x = 20°

Thus, the value of the variable x will be 20°.

More about the angled link is given below.

https://brainly.com/question/15767203

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