Question

If the angle of an angle is 20 ° greater than the measure of its angle, what is the measure of that angle?​

Answer 1

Answer:

If the angle is x, then its supplement is 180 - x, right? So we can say that x - 20 = 180 - x because we would have to subtract 20 from x to equal its supplement. So let's add x, and also add 20 to both sides, so we now get: 2x = 200, so x = 100 deg ANSWER Easy to check: x= 100, so its supplement = 180 - 100 = 80.