Posted by **Br** on Sunday, May 8, 2011 at 12:23pm.

I have a table to complete.Given that points A and B belong to a circle with centre O; If the area of the sector bounded by central angle AOB is 14.13cm squared and the measure of central angle AOB=45cm squared. What is the radius of the disk(cm)and what is the area of the disk(cm squared)

- math - 8th grade -
**Henry**, Sunday, May 8, 2011 at 8:58pm
As = (45/360)Ac = 14.13cm^2.

0.125Ac = 14.13,

Ac=113.4cm^2 = Area of disk or circle.

3.14r^2 = 113.4cm^2,

r^2 = 36,

r = 6cm = radius of disk.

## Answer This Question

## Related Questions

- trigonometry - A sector AOB of a circle, centre O, radius r cm, where the acute ...
- geometry! - Γ is a circle with center O. A and B are points on Γ such ...
- Geometry - ƒ¡ is a circle with center O . A and B are points on ƒ¡ such that the...
- geometry - In a circle centered at point O, the ratio of the area of sector AOB ...
- can xome1 help me plzz im stuck - HELP PLZZ...A circle has radius 2 cm,(in that ...
- MATH - 1. The circle graph represents a family’s monthly budget. If the total ...
- mATH - MY ANSWER RECORDED BELOW 1. The circle graph represents a family’s ...
- mathematics - AOB is a sector of a circle such that angle AOB=60 degrees Celsius...
- Math - 1. Find the angle of smallest positive measure coterminal with an angle ...
- Math - 1. Find the angle of smallest positive measure coterminal with an angle ...

More Related Questions