Question

Type the correct answer in each box.

The value of x is °, and the value of y is °.
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Answer 1

X=60°

Y=50°

Explanation:

Triangles must equal 180° when you add all angles together.

Triangle with angle X

• 50+70=120
• 180-120=60
• X=60°

To find the value of Y takes a few more steps, but it isn't hard!

Angle Y is on a line, which equals 180° just like a triangle.

We know X=60°, but we don't know what the blank angle equals.

We use the same steps as we did when finding X

• 60+50=110
• 180-110=70
• Blank angle=70°

We know that the blank angle=70° and that X=60°

Since the line equals 180, we add the two angles and then subtract from 180, just like before!

• 70+60=130
• 180-130=50
• Y=50°