Question

The diameter of a cart wheel is 1.4 m. Find its circumference.​

Answer 1

Answer:

diameter is 1.4m

radius = d/2 = 1.4/2 = 0.7m

circumference of a circle = 2πr

= 2×22/7 × 0.7

= 2× 22× 0.1

= 4.4 m

Answer 2

The diameter of a cart wheel is given to be 1.4 m

So, radius = diameter/2

                = 1.4/2

                = 0.7 m

Now, we have to find the circumference of the cart wheel

We will use the formula of the circumference of a circle

Circumference = 2πr

                         = 2 × (22/7) × 0.7

                         = 2 × 22 × 0.1

                        = 44 × 0.1

                        = 4.4 m

Hence, the circumference of the cart wheel will be 4.4 m