There is a circular Park in front of a shopping mall whose radius is 20m. There is a gravel path of uniform width the 2m around the park. Find :A person take 5 round of the circular Park. What distance he cover.

Very bad nothing is there in this

Radius=20m

Distance covered by the person =5×circumference of circle
=5×2×3.14×30
=200×3.14
=628sq.cm

It's 20 not 30

Man walks 5 rounds around it.

R=20cm
So, circumference would be =
2×3.14×20×5
=628 meters

Well, let's calculate the total distance covered by that person taking 5 rounds of the circular park.

First, let's find out the circumference of the circular park. The formula for the circumference of a circle is C = 2πr, where 'r' is the radius. In this case, the radius is 20m, so the circumference would be C = 2 * π * 20 = 40π m.

Now, since the person is taking 5 rounds around the park, we just need to multiply the circumference by 5. So, the total distance covered would be 5 * 40π = 200π m.

Now, if you want the actual numerical value, it would be approximately 628.3m.

So, the person would cover around 628.3m in total while taking 5 rounds of the circular park. That's quite a walk!

To find the distance covered by a person taking 5 rounds of the circular park, we need to calculate the circumference of the park and then multiply it by 5.

Step 1: Calculate the circumference of the park
The circumference of a circle can be calculated using the formula C = 2πr, where C is the circumference and r is the radius of the circle.

Given that the radius of the circular park is 20m, we can substitute this value into the formula to find the circumference:
C = 2π(20m)
C = 40πm

Step 2: Multiply the circumference by 5
Since the person is taking 5 rounds, we multiply the circumference by 5:
Distance covered = 40πm * 5
Distance covered = 200πm

Therefore, the person would cover a distance of 200πm by taking 5 rounds of the circular park.

Assuming that he walks the middle if the path, then his radius = 21m

Circumference = 2πr

5C = 5(2πr)

Insert values and calculate.