Question

7. Emma is varnishing the floor of a circular room with diameter 8m. One tin of varnish will cover an area of 3m?.

How many tins of varnish will she need to buy to varnish the floor of the room

Answer 1

a = 16*3.1415/3 = 16.76

Explanation:

a =pi*r^2

r =D/2

r = 8/2

r = 4

a = pi*4^2

a=pi16

pi = 3.1416