Question

the diameter of a car's tyre is 70 cm find the distance covered by it in 5 rounds (pi=22/7)

pls answer correct i am class-7​

Answer 1

Step-by-step explanation:

The diameter of the tyre=70cm

Radius of the tyre=diameter/2

Radius=r-70/2=35cm

Using Concept

tyre is in the form of circle If it is distance

covered by one round is the perimeter of the

tyre

Perimeter of the circle=2Tr

Distance covered by the car in one round

-2x(22/7)x35

=>{2*22*35)/7

>2*22*5

->220cm

Distance covered by the given car in one

round-220cm

Distance covered by the car in 5 rounds

5 220

-1100 cm 11 m (100cm-1im)

Answer:

Distance covered by the car in 5

rounds=1100cm or 11 m

Answer 2

Answer :

›»› The distance covered by the car in 5 rounds are 1100 cm.

Given :

• The diameter of a car's tyre is 70 cm.

To Find :

• The distance covered by it in 5 rounds.

How to solve?

Here in this question we have to find the distance covered by it in 5 rounds. So, firstly we need to find the radius of a car's tyre, after that will find the circumference of a car's tyre, after all this we will find the distance covered by it in 5 rounds on the basis of conditions given above.

A car's tyre is in the form of a circle.

To find the radius of a circle we can divide the diameter value by 2.

To find circumference of a car's tyre we can use the formula for finding the circumference of circle which says Circumference = 2πr.

Solution :

A car's tyre is in the form of a circle. so,

→ Diameter of circle = 70 cm.

→ Radius of circle = Diameter ÷ 2

→ Radius of circle = 70 ÷ 2

→ Radius of circle = 35 cm.

As we know that

→ Circumference = 2πr

→ Circumference = 2 * 22/7 * 35

→ Circumference = 2 * 22 * 5

→ Circumference = 44 * 5

→ Circumference = 220

The distance covered by the car in one round is 220 cm.

Now,

The distance covered by it in 5 rounds = 5 * Distance covered by a car in one round.

→ Distance covered = 5 * 220

→ Distance covered = 1100 cm.

Hence, the distance covered by the car in 5 rounds are 1100 cm.