0
votes
2answers
54 views

Find radius and height

I have the following problem: given the length of the chord AB and the length of the arc AB, find the radius of the circle and the height of the triangle ACB where C is a point on the circle such that ...
3
votes
1answer
38 views

is diffrence of raduis of 2 circles is not depend upon thier peremeter

I read on the Internet it's true, but I suspect it: Image describing the puzzle Take a ribbon tightly wound around the equator of the earth. Add 1 meter to that ribbon by cutting it at any ...
4
votes
2answers
262 views

Math Puzzle: Area of Concentric Rings

The problem below appeared on the latest round of Google Code Jam: Maria has been hired by the Ghastly Chemicals Junkies (GCJ) company to help them manufacture bullseyes. A bullseye consists of a ...
2
votes
4answers
560 views

Extending the length of a curcumference by 1 meter

I once heard the following statement: Take a piece of string and measure the length around a ball. Now add 1 meter to the string and stretch it out evenly around the ball. Obviously the ...
1
vote
1answer
514 views

Geometry Puzzle - Largest circle on Chess

The following puzzle was asked in company interview round.I have no idea ,how to do it? ...
0
votes
1answer
161 views

What is the ratio of the area?

If the segment A'B' is tangent to the incircle of triangle ABC, and that segment AB = segment CM; then, what is the ratio of the area of the triangle ABC to the area of the small triangle A'B’C? ...