Question

from the figure
find b, if b=2(a+c)

Answer 1

Answer:

b=120

make me brilliant

Answer 2

Answer:

a + b + c = 180

where b = 2( a + c )

put the value of b

a + 2( a + c ) + c = 180

a + 2a + 2c + c = 180

3a + 3c = 180

3( a + c) = 180

a + c = 180/3

a + c = 60

so , b = 2 ( a + c) = 2 x 60

b = 120