Question

8. In the given figure :
b = 2a + 15° and
c = 3a +5°,
find the values of b and c.​

Answer 1

Step-by-step explanation:

c+b=180°

2a+15°+3a+5=180°

5a+20=180°

5a=180°-20°

5a=160°

a=160/5

a=32

b=77°

c=96°