Question

In a circle of radius 6.3,an arc AB subtend an angle of 90 at the centre O of the circle, then the length of the arc is​

Answer 1

Answer:

9.9

Step-by-step explanation:

Legth of arc =

$theta \div 360 \times 2\pi r$

$90 \div 360 \times 2\times 22 \div 7 \times 6.3$

$1 \div 4 \times 2 \times 22 \times 0.9$

$11 \times 0.9$

$9.9$