Question

A circular grass lawn has an area of 314 square metres.
12.
Find the circumference of the lawn.

Answer 1

Answer:

$C= 62.8m$

Step-by-step explanation:

Let's round $\pi = 3.14$. Area of a circle if $\pi r^2$. In our case, we can easily find out the radius$\pi r^2 = 100\pi \rightarrow r=10m^$. At this point, it's easy to find the length of the circumference by doubling it and multiplying again by $\pi$:

$C= 2\pi r = 62.8 m$