A chord of length 30cm is 8cm away from the center of the circle. What is the radius of the circle? Take \(\pi =\frac{22}{7}\)
A
16cm
B
17cm
C
18cm
D
20cm
Verified Correct Answer: B.
Step-by-Step Mathematical Solution
From the diagram
r\(^2\) = B\(^2\) + 15\(^2\)
= 64 + 225
r = \(\sqrt{289}\) = 17cm
Source: Myschool Past Questions Archive (Record #26514)