Question

2a+2b=360 degrees

a) a= 60 degrees
b) a = 75 degrees
use algebra to solve for b, find the unknown angles for the parallelogram

Answer 1

2a+2b=360

2(60)+2b=360

120+2b=360

2b=360-120

2b/2=240/2 divide by 2

b=120

step 2

2a+2b=360

2(60)+2(120)=360

120+240=360

360=360

• part two b)

2a+2b=360

2(75)+2b= 360

150+2b=360

2b=360-150

2b/2=210/2

b=105

step 2

2a+2b=360

2(75)+2(105)=360

150+210=360

360=360