2022
Mathematics
JAMB
Find the length of a chord 3cm from the centre of a circle of radius 5cm
A.
8cm
B.
5.6cm
C.
7cm
D.
6.5cm
Correct Answer: 8cm
Explanation
Using pythagoras formula: Hyp2 = adj2 + opp2 52 = opp2 + 32 52 - 32 = adj2 4 = adj length of the chord = 2 * 4 = 8cm
Using pythagoras formula: Hyp2 = adj2 + opp2 52 = opp2 + 32 52 - 32 = adj2 4 = adj length of the chord = 2 * 4 = 8cmTHIS WEEK's
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