Question

If the length of the shorter arc AB is 22 cm and C is the centre of the circle then the circumference of the circle is :​

Answer 1

Answer:

$length \: of \: arc = \frac{θ }{360}2 \pi \: r$

θ=45°

so,

$22 = \frac{45}{360} \times \frac{22}{7} \times 2 \times r$

$= > \: r = 28$

Therefore, circumference which is 2πr

$= > 2\pi \: r = 2 \times \frac{22}{7} \times 28$

$= 176cm$