2007
Mathematics
JAMB
Calculate the length of an arc of a circle diameter 14 cm, which substends an angle of 90o at the center of the circle
A.
7π/2 cm
B.
7π cm
C.
14π cm
D.
7π/4 cm
Correct Answer: 7π/2 cm
Explanation
Length of an arc = θ/360 x 2πr 90/360 x 2 x π x 7 = 7π/2
Length of an arc = θ/360 x 2πr 90/360 x 2 x π x 7 = 7π/2THIS WEEK's
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