Posted by **Anonymous** on Tuesday, August 23, 2011 at 5:28pm.

A dartboard consists of a circle inside a rectangle.

the diameter of the circle equals the width of the rectangle. if the length of the rectangle is 20 units and its area is 160 squares units, what is the approximate probability that a dart that lands inside the rectangle will also land inside the circle?

a) .05

b) .25

c) .13

d) .31

y?

- geometry -
**Reiny**, Tuesday, August 23, 2011 at 5:52pm
area of rectangle = 160

so width = 160/20 = 8

area of circle = π(4^2) = 16π

prob of hitting circle = 16π/160 = .314 , looks like d)

- geometry -
**shelby**, Tuesday, August 23, 2011 at 6:05pm
would a partially opened newspaper be a plane and would a woven threads in a piece of cloth be line .

also what would a satellite dish signal be .. line plane or point

## Answer This Question

## Related Questions

- Math - A mechanical engineering student wishes to inscribe a rectangle in a ...
- math - The length of the rectangle is 20 m and the width of the rectangle is 10 ...
- Geometry - The area of a rectangle is 2160 square units and the diagonal is 78 ...
- basic geometric - 10. a rectangle has width the same as a side of a square whose...
- algebra 2 - if the length and width of the rectangle are 5 and 11 inches ...
- algebra - The length of a rectangle is three times the width of the rectangle. ...
- Math 5th grade - Sorry for re-post. Damon answered but I do not see any relate ...
- Math - answer to travis has designed a rectangle with an area of 59 square units...
- MATH - Two rectangles have the same width. One is 12 units long and the other ...
- Math - A rectangle is inscribed in a semi circle of radius 2, let x represent ...

More Related Questions