To find the value of x, we can use the fact that the sum of the measures of two adjacent angles that form a straight line (180°) is 180°. Since the two angles in question make up a 90° angle, their measures should add up to 90°.
Therefore, we can write the equation:
x + (x + 30) = 90
Simplifying the equation, we get:
2x + 30 = 90
Subtracting 30 from both sides, we have:
2x = 60
Dividing both sides by 2, we get:
x = 30
Therefore, the value of 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
A. 20
20
B. 30
30
C. 15
15
D. 60
1 answer
1 answer