14. The length of an arc, which subtends an angle
of 30° at the centre of the circle of radius 42 cm
is
(a) 22 cm
(b) 44 cm
22
(d)
7.
(c) 11 cm
cm
Answers
Answered by
0
Step-by-step explanation:
length of an arc= (angle substend /360)*2πr
=(30/360)*2*3.14*42
=(1/12)*263.76
=21.98cm
or 22cm approx
so (a) is correct answer
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