Need help asap (Geometry) 15+ points

We have two similar triangles here, which means that all of their angles match up and are the same.

Q = T = 40

R = U = ?

S = V = 63

The measure of a triangles interior angles is 180 degrees.

40 + R + 63 = 180

103 + R = 180

R = 77

The measure of angle R is the first option, 77 degrees.

Hope this helps!! :)

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

17.08

correct me if i am wrong.