Answer:
It is 432
Step-by-step explanation:
Hey there!
As you can see, they are lying on the same line.
When two angles are on the same straight line, they are adjacent.
Adjacent angles are supplmentary.
Adjacent angles= 180 degrees Supplementary= 180 degrees
They are choices "A" and "B".
I hope this helps!
~kaikers
Answer:
step 1: x+50+4x=90
the angle of a right-angled triangle is 90 degrees, therefore if we add everything together ,we could work out what x is.
step 2: x+50+4x=90
x+4x=50
5x=50
x=10
then you solve the equation, x is 10