If the length of a chord of a circle is 16 cm and is at a distance of 15 cm from the centre of the circle, then the radius of the circle is
A. 15 cm
B. 16 cm
C. 17 cm
D. 34 cm
Answers
Answered by
4
Answer:
Let the radius of the circle is r, then
r
2
=(distance of the chord from the centre)
2
+(half of the length of the chord)
2
⇒r
2
=6
2
+8
2
=36+64=100
⇒r=10 cm
As we know, diameter is twice of radius,
∴d=2×10=20
Answered by
1
Answer:
17
Step-by-step explanation:
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