Question

Question 1

Tell whether the angles are complementary or supplementary. Then find the value of x.
The angle is complementary but I don't know the value of x.
the angles are
x and (x-20)

Answer 1

55

Explanation:

If they're complementary, that means they add up to 90 so:

x + x - 20 = 90

Then, solve.

`2x - 20 = 90\\2x = 110\\x= 55`