Question

The area of a circle of diameter 20 cm is 31.4 cm² True or false

Answer 1

Answer:

ANSWER IS FALSE

Step-by-step explanation:

SINCE DIAMETER= 20cm

               RADIUS=20/2

                             =10cm

AREA OF CIRCLE = πr²

                               = 3.14*10*10

                               =3.14*100

                               =314cm²

Therefore the answer is false.

Answer 2

answer is radius (r) =diameter (d) /2

=20/2 cm

=10cm

False

as

π=3.14

area of circle=π r^2

=3.14*10*10

=314/10*10*10

=3140cm^2