Answer:
should be 30
Step-by-step explanation:
triangles have 180°
if x is 30
2x is 60
the other angle is 90
add those all together and you get 180°
D
(7+8)*3
x=48
The other angle is 66° because it's an isosceles triangle
so
180=66+66+x
180=132+x
They both have the same range
375-175=200
400-200=200