Question

Help! T^T angles suck!

Answer 1

x = 15

Explanation:

"linear pair" is the sane functionally as "supplementary". These two angles add up to 180°

They threw in there "straight angle" which is basically a straight line just to make sure you knew its flat, straight across 180°

So 9x + 3x = 180

combine like terms

12x = 180

divide by 12

x = 15

Answer 2

(Me again, angles rock!)

Answer:

x = 15

Explanation:

Angle QRT and TRS share a line and a vertices, which means they are supplementary. Supplementary angles add up to 180 degrees. Knowing this, we know that the sum of the two angles must equal 180 degrees.

Our equation:

`3x + 9x = 180\\12x = 180\\12x/12 = 180/12\\x = 15`