Question

The radius of the front wheel of David's bike is 50cm.
David goes for a cycle and travels 31.66km.
How many full revolutions did David's front wheel complete?
Not interested in website links just answers pls

Answer 1

10083

Step-by-step explanation:

• r=50cm
• d=31.66×10^5 CM
• distance covered in one revolution=2×3.14×50=314cm
• now total revolution=31.66×10^5/314=10082.8≈10083

Answer 2

Hey there! here is your answer!Hope it helped!

please mark as brainliest answer! :)

Answer:

Hey there! To answer your question , let me tell you what is the perimeter of a circle called and how to find it.

What is the perimeter of a circle called?

Ans. The perimeter of a circle is known as

What is perimeter?

Ans. Perimeter is nothing but the measure of the boundary of something.

How do we find the perimeter of a circle?

Ans. We can find the perimeter of a circle with the formula 2πr. π can be equal to 22/7 or 3.14. r= radius of the circle.

Step-by-step explanation:

So, following the definition of the perimeter of a circle, and its formula, let us answer your question .

The radius of the front wheel of David's bike is 50cm. David goes for a cycle and travels 31.66km. How many full revolutions did David's front wheel complete?

Ans. So, first let us find the perimeter of the wheel of davids bike.

Perimeter= 2πr

= 2* 3.14 *50cm ( radius )

Perimeter= 314 cm( workings in the picture) .

Now, we need to divide the perimeter of the circle by distance traveled to get the number of revolutions.

Let us convert kilometres to centimetres so that we can divide easily.

31.66km=3166000 centimeters.

3166000÷314= 10082.80 revolutions.

This can be rounded off to 10082 revolutions David's front wheel completed.

Hope it helped!

please mark as brainliest answer! :)