Length of one chord of a circle is 42 cm. This chord makes an angle
of 30° at the centre subtended by a sector. Find the diameter of the
circle.
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Step-by-step explanation:
Diameter of circle = 42 cm.
Radius = 42/2 = 21 cm Central angle = 60° We know that,
Length of the arc = θ/360 (2πr)
= 60/360 x 2 x 22/7 x 21
= 22 Length of
the arc is 22 cm
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Answer:
89 9
Step-by-step explanation:
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