Question:
Two wheels with centres A and B are touching each other as shown in Figure 1. Each wheel is of radius 7 cm.
(a) Find the area of the shaded part.
(b) The wheels turn along the straight line XY in opposite directions as shown in Figure 1. Find the distance between A and B when each wheel has made 5 complete turns. (The new position, not drawn to scale, is shown in Figure 2.)
(Take π = 22/7)
Solution:
![P6 / Nanyang / 2019 / CA1 / Paper 1 – Q06 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/04/P6_CA1_2019_Nanyang_Paper1_Q06-Qns.jpg?resize=400%2C260&ssl=1)
