Question

the length of an arc of a circle is 7.5 cm. The corresponding sector is 37.5^2cm. Find:
A)the radius of the circle.
B)the angle subtended at the centre of the circle by arc.
Please show workout.

Answer 1

The proportion of arc to circumference = proportion of sector area to total circle area.

Answer 2

can you show the workout?

Answer 3

The above is the workout, just substitute the math that matches my words.

So to start 7.5/2*pi*r =

Answer 4

got it thanks man :)

Answer 5

ur welcome

Answer 6

mind if i ask another ques related to add maths?

Answer 7

You should post a new question....

Answer 8

ok