SPC: Question 5
- Yoong Kheong
Check boxes for the following: 1. Hint for (a): Through different stages Blue dots for : 1. Rotation of points or translation of circle. Question: The diagram shows a circle of centre o, with radius r metres. A and D are points on the circle such that AD = 16 cm. E is the midpoint of AD and E is on OF such that EF = x metres. (a) Show that (b) Express r in terms of x. (c) Hence, given then EF = 4 cm, calculate the radius of of the sphere.