For two adjacent angles with measures x° and (x+30)° that make up a 90° angle, what is x?(1 point)

Question

Responses

30
30

60
60

15
15

20

Answer 1

We know that the sum of two adjacent angles that make up a 90° angle is 90°. Therefore, we can set up the equation:

x + (x+30) = 90

Simplifying the equation:

2x + 30 = 90

Subtracting 30 from both sides:

2x = 60

Dividing both sides by 2:

x = 30

Therefore, x = 30°.