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Home / Aptitude Tests / Mathematics / Calculate the length...
Calculate the length of an arc of a circle diameter 14 cm, w...

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

View answer & explanation

Correct answer is A

Length of an arc = θ/360 x 2πr
90/360 x 2 x π x 7
= 7π/2


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