Question

If the diameter of a wheel is 42 cm, then what will be its circumference?

Answer 1

Answer:

131.88 ccm

Step-by-step explanation:

Diameter ÷ 2 = Radius

42 cm ÷ 2 = 21 cm

Circumference = 2 × 3.14 × Radius

Circumference = 2 × 3.14 × 21

Circumference = 2 × 65.94

Circumference = 131.88 cm

Answer 2

Answer:

r=d/2

r=14/2

r=7cm

circumference of circle=2πr

=2×22/7×7

=2×22

=44

=14

. =π

=22/7×14

=22×2

=44