Question

Please help me out with this question

Answer 1

To find the area of a circle, we use the formula: A = Pi × r × r

r being the diameter / 2

So for this question:

First divide the diameter; 18÷ 2 = 9

Then use formula; Pi × 9 × 9

Which gives us: Area = 254.4690049408

Answer 2

area of a circle is pi*r^2, where pi is 3.14 usually, so the answer is 254.34

Explanation: