Question

Find the length of arc of an angle 120degree of circle with radius 7cm

Answer 1

Answer:

44/3 cm

Step-by-step explanation:

2π x 7 x 120/360

= 2 x 22/7 x 7 x 1/3

=44/3 cm.

Answer 2

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here is your,

$\huge{ \green{ \: answer}}$

Given:- theta = 120°

radius = 7cm

pi = 22/7

Sol.

$\huge{ \: 2{ \pi \times r \times \frac{ \theta}{360°}}}$

$\huge{ \: 2 \times \frac{22}{7} \times7 \: \frac{120°}{360°}}$

$\huge{ \: 2 \times \frac{22}{\cancel{7}} \times{ \cancel{7} \times \frac{1}{3}}}$

$\huge{ \: = \frac{44}{3}} \: { \small{cm}}$

$\huge{ \: i.e = 14.7cm}$

Hence,

The Length of the arc is 14.7cm.

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