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.

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.

anonymous · Answer

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

anonymous · Answer

can you show the workout?

anonymous · Answer

The above is the workout, just substitute the math that matches my words.

So to start 7.5/2*pi*r =

anonymous · Answer

got it thanks man :)

anonymous · Answer

ur welcome

anonymous · Answer

mind if i ask another ques related to add maths?

anonymous · Answer

You should post a new question....

anonymous · Answer

ok