Question

Can someone please help, PQ=RQ

what is A=?

Answer 1

a = 100 degrees

Explanation:

80-140=40

40 x 2 =80

180-80=100

Answer 2

100

Explanation:

Since PQ = RQ it is an isoceles triangle, which means angle b and angle R are the same measure. Angle R is linear with 140 degrees, so it has to be 40 degrees. Angle b and Angle R are both 40 degrees, and all 3 angles must add to 180, so angle a is 100 degrees