# 5.2.7 Circles, PT3 Focus Practice

Question 16:
(a) Diagram 16.1 shows a Ferris wheel. The distance between point L and point M is 18 m.

Diagram 16.1

Calculate the minimum number of complete spins required to cover the distance of 600 m in a circular motion.

(b)
Diagram 16.2 shows one large pizza and two small pizzas. Assume all pizzas are circular with a flat surface.

Diagram 16.2

Using  $\pi =\frac{22}{7}$ , calculate the portion of the large pizza which equals to two small pizzas.

Solution:
(a)

(b)