Question

in the given figure AOC and BOC form a linear pair if a-2b=30° find a and b ​

Answer 1

Answer:

a=120° and b=30°

Step-by-step explanation:

a-2b=30°

so 120°-2×30°=30°

120°-60°=30°

30°=30°

Hence proved

Answer 2

a-2b= 30°

a=30°+2b (i) equation

a+b= 180° ( linear pair)

30°+2b+b= 180° ( using i equation)

30°+3b=180°

3b=150°

b = 50°

putting the value of (b) in (i) equation

so,the value of (a) is 130°

(a= 130° and b= 50°)