Answer:
x=20
m<B=92 degrees
m<C=40 degrees
Step-by-step explanation:
48+6x-28+2x=180
20+8x=180
8x=160
(6(20)-28)=92
2(20)=40
So, x=20, m<B=92 degrees and m<C=40 degrees
x = 20, angle B = 92, angle C = 40
Solve for x.
48 + 6x - 28 + 2x = 180
8x + 20 = 180
8x = 160
x = 20
Angle B = 6(20) - 28 = 92
Angle C = 2(20) = 40
Proof: 48 + 92 + 40 = 180
