A cone was developed from a sector of a circle with radius10cm and an angle at the centre of 108°. What is the radius of the cone?
A
9.0cm
B
8.5cm
C
7.2cm
D
4.3cm
E
3.0cm
Verified Correct Answer: E.
Step-by-Step Mathematical Solution
No expanded working has been attached for this question yet. The verified answer is Option E.
Source: Myschool Past Questions Archive (Record #42021)