Question

2.
Calculate (a) the circumference of a circle of radius 3.5 cm
and (b) area of a circle of radius 4.65 cm​

Answer 1

Answer:

question 1

circumference of a circle=2πr

π=22/7

r=3.5

circumference of a circle=2×(22/7)×3.5

circumference of circle=22cm