Question

What is the measure of the angle?See ImageA) 20 degreesB) 70 degreesC) 160 degreesD) 250 degrees

Answer 1

`C)160^(\circ)`

1) Note that we can tell that the angle to the left (70º) and the one to the right is 90º

2) So to find the measure of that angle that starts in Quadrant I and goes to the left to Quadrant II is:

`90^(\circ)+70^(\circ)=160^(\circ)`