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Q.

Length of arc of a circle with radius 7 cm is 11cm, then angle subtended by an arc is

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a

none of the above

b

\frac{π^{c}}{2}

c

90 °

d

100^{g}

answer is A, B, C.

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Detailed Solution

Length of the

arc = 11

cm

$\frac{θ}{360 °} \times 2 π r = 11$

$θ = \frac{11 \times 360 °}{2 \times \frac{22}{7} \times 7}$

$θ = 90 °$

$90 ° = 100^{g} = {(\frac{π}{2})}^{c}$

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