Question

Please solve qo.1 In the diagram. Fast

Answer 1

a regular Pentagon has all it's side and angle equal

so, (a-2)180

sum of angle of pentagon is 540

each angle=540÷5

=108

angle a=108

b=180-108

=72

angle a=b+c

108=72+c

c=36

a=108

b=72

c=36