# Pre-Algebra B

posted by .

A Venn diagram with two circles is drawn. Each circle has a diameter of 10 cm. The overlapping area is 20 cm^2. Find the total writing area within the diagram.

• Pre-Algebra B -

A = pi * r^2
A = 3.14 * 5^2
A = 78.5

(2 * 78.5) - 20 = ?

## Similar Questions

1. ### Algebra- circles

On my paper, there's a circle drawn inside of a square, whose side length is 12. I have to find diameter, radius, area, area in terms of pi, ... For the diameter first of all, would it be 12?
2. ### Math

i don't get it, i have got homework to create a venn diagram of natural and whole numbers aren't they both the same thing?

How do you use a venn diagram to find the GCF and LCM of two or more factors. This is what a venn diagram looks like: ()() <--- put those together and it makes a venn diagram PLEASE HELP!
4. ### Basic Math Venn Diagram

Hi! Having a lot of trouble with this one problem. The venn diagram problem is n(U)-n(B). I realize I did not post the venn diagram, I just need to know how to solve that type of problem using a venn diagram! Help would be greatly …
5. ### Geometry - Circles and tangents

Two circles of radius 1 are externally tangent at Q . Let PQ and QR be diameters of the two circles. From P a tangent is drawn to the circle with diameter QR , and from R a parallel tangent is drawn to the circle with diameter PQ . …
6. ### math

A circle has an area of 25 pi cm^2.If a circle is drawn within that circle with a diameter equal to the radius of the first circle, what is the area of the second circle?
7. ### math

what is the expression for the area of the shaded region in the diagram in factored form?
8. ### mathematics,physics,life science,LO,afrikaans

A number of circles are given and the area of the smallest circles is 4π.The area of the next circle is 9/4 times of the previous circle.if there are 6 circles,determine the length of the diameter of the last circle.
9. ### geometry

Two overlapping identical circles have radii of 6.17. The area of their overlapping sections is 42.7. How far apart are the centers of the circles?
10. ### MATHS

Two circles of radii 5 cm and 12 cm are drawn, partly overlapping. Their centers are 13cm apart. Find the area common to the two circles.

More Similar Questions