Question

Two lines extend from point S to create a right angle. The vertical line extends from point S through point R. The horizontal line extends right from point S through point T. A third line extends right and up from point S through point U.


Which is another way to name AngleUST?

AngleTSR
AngleTSU
AngleUSR
AngleUTS

Answer 1

Angle TSU.

Both ∠UST and ∠TSU have S as the vertex and use the same rays SU and ST, so they name the same angle.