Posted by **candace** on Sunday, January 9, 2011 at 4:24pm.

how do i find the radius of the largest circle that can be cut from a square piece of paper with a diagonal of 20cm?

- geometry -
**Henry**, Monday, January 10, 2011 at 3:53pm
Diameter = Length of a side. = X.

X^2 + X^2 = (Diag.)^2,

2X^2 = (Diag.)^2 = (20)^2,

2X^2 = 400,

X^2 = 200,

X = sqrt(200) = 14.14cm = Diameter.

r = 14.14 / 2 = 7.07cm.

## Answer This Question

## Related Questions

- Maths/Algebra/Calculas - A square piece of paper 20cm by 20cm has equal sized ...
- Math - What is the largest square of which the dimensions are natural numbers ...
- geometry - how many inches long is the radius of the largest circle that can fit...
- CALCULUS - A cone shaped paper drinking cup is to be made from a circular piece ...
- math - a piece of wire 24 ft. long is cut into two pieces. one piece is made ...
- Calculus - a piece of wire 12 ft. long is cut into two pieces. one piece is made...
- math - From a piece of pin in the shape of a square 6 inches on a side, the ...
- math 8th grade - for a project, you need the diagonal fold of a square piece of ...
- Differential Calculus - Hi pls help me i dunno what to do show me complete ...
- Geometry - A certain Circle of paper has x degrees cut out of it. The two cut ...

More Related Questions