The measure of an angle is 78 less than the measure or its complement. What is the measure of the angle

84°

Step-by-step explanation:

2 complementary angles sum to 90°

let x be the angle then complement = x - 78, hence

x + x - 78 = 90 (add 78 to both sides)

2x = 168 (divide both sides by 2)

x = 84

hence the angle is 84°