The sum of two adjacent angles that form a straight line is 180°. Since the two angles make up a 90° angle, the sum of x° and (x+30)° is 90°.
x + (x+30) = 90
2x + 30 = 90
2x = 60
x = 30
Therefore, x is 30°.
For two adjacent angles with measures x° and (x+30)° that make up a 90° angle, what is x ?(1 point)
Responses
20
20
30
30
15
15
60
1 answer
1 answer