Answer:
I think d is a one on one function while c is a function but a multiple relation function, sorry if im wrong
Area of a circle is πr².
Therefore we can get the radius of the great circle (and thus the sphere) by doing √(A / <span>π).
</span>
√(28.6 / <span>π) = 3.017 to 3DP.
</span>
Surface area of a sphere is 4πr².
4<span>π(3.017)</span>² = 114.4 to 1DP
12%. since this 24/ 200 if you just divide it by 2 you get 12/ 100 meaning 12%
