How to find the radius of a sector?

Answer 1

if you want area of sector

[angle x pi x radius-square]/360

if you know area then you can find the radius or

The volume of a solid sphere is:

V = 4/3*π*R^3

Since the complete sphere goes all the way around (2*π radians), the fraction of the sphere you have is T / (2*π), if T is given in radians. Therefore, the volume of the sphere sector is:

V = (4/3*π*R^3) * (T / (2*π))

V = 2/3*T*R^3

then substitute the volume and get radius

or use integration ( cylindrical shell or disc method) by setting the equ of the sphere as equ of circle x^2+(y-h)^2+r^2

and set the x int as the end point of the sphere. The x intercept will be rsintheta

Answer 2

Finding area of sector means finding a fractional part of the area of the entire circle. The fraction is determined by the ratio of the arc length to the entire circumference.

Answer 3

I'm sorry, but i don't know =/.