Complementary angles add up to 90 degrees. So, we have the equation:
3x + (2x - 5) = 90
Combining like terms, we get:
3x + 2x - 5 = 90
5x - 5 = 90
Adding 5 to both sides, we have:
5x = 95
Dividing both sides by 5, we get:
x = 19
So, the two angles are:
3x° = 3(19)° = 57°
and
2x - 5° = 2(19) - 5° = 38 - 5° = 33°
What are the two angle measures of complementary angles expressed as 3x° and (2x−5)°?
1 answer