Respuesta :
Answer:
48
Step-by-step explanation:
Complementary angles add to 90 degrees
Let x be the unknown angle
x+42 = 90
Subtract 42 from each side
x+42-42 = 90-42
x = 48
The complement is 48 degrees
Complementary angles are 2 angles that sum up to 90 degrees.
We can solve this two ways.
Solution 1:
Subtract.
90 - 42 = 48 degrees.
Solution 2:
42 + x = 90
Subtract 42 to both sides
42 - 42 + x = 90 - 42
Simplify
x = 48 degrees
Best if Luck!