Question

In a circle of radius 4 cm, an arc is drawn which suspends an angle of 30° at the centre. Find the length of the arc.

Answer 1

Answer:

length of an arc =

$tetha \div 360 \times 2\pi \: r$

$30 \div 360 \times 2 \times 3.14 \times 4$

$= 1.46$

is the answer

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