Question

ZABC and ZDEF are complementary angles.

What is the measure of x?
А,
С X = [?]°
549
D
B
Х
>F

Answer 1

IF ABC and DEF are complementary then ABC + DEF = 90°

Therefore, DEF = 90° -ABC

Since DEF = 54° and DEF = x then

x = 90° -54°

x = 36°

Explanation:

Answer 2

x = 36

Explanation:

Complementary angles add to 90 degrees

54+x = 90

x = 90-54

x = 36