Question

Find the missing angle measure in QRS.
Q = _____°, R = 60°, S = 20°
A. 80
B. 100
C. 120
D. 60

Answer 1

Is QRS a triangle ?

Answer 2

Well

<Q+<R+<S=180

<Q=180-<R-<S

Answer 3

if QRS is a triangle. you must add all of angles. the sum equals 180 degree.

Answer 4

100 if it is triangle:)