A chord of length 6cm is drawn in a circle of radius 5cm. Find the...
MATHEMATICS
WAEC 2007
A chord of length 6cm is drawn in a circle of radius 5cm. Find the distance of the chord from the centre of the circle.
- A. 2.5cm
- B. 3.0cm
- C. 3.5cm
- D. 4.0cm
Correct Answer: D. 4.0cm
Explanation
Distance(d) = d2 = 52 - 32
= 25 - 9
= 16
d = \(\sqrt{16}\)
= 4cm
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