Saturday

April 19, 2014

April 19, 2014

Posted by **Anonymous** on Monday, December 24, 2012 at 1:47pm.

- maths -
**MathMate**, Monday, December 24, 2012 at 9:59pmThere is no diagram posted, and not enough description to give a defined question.

I am adding the following guesses. Check if they are correct. If they are not, post the complete description.

AMB is a straight line such that AM=MB.

Semicircles are drawn with AB,AM and MB as diameters. Also, AM=MB=18 cm.

A circle is drawn with centre C such that CM is perpendicular to AB, and such that the circle is tangent to all three semicircles.

We need to find the interstitial space outside of the circle, the two small semi-circles and INSIDE the big semi-circle.

Hints:

Use r to represent the radius of the circle, and express the sides of the right triangle joining the centres of the circle, the large semicircle, and one of the small semicircles. Solve for r and find the areas.

See link:

http://img14.imageshack.us/img14/2479/1356374872.jpg

**Related Questions**

MATHS - draw a line segment AB=6cm take a point C on AB such that AC= 2.5 cm ...

maths - In a triangle ABC, AB = 2 cm, BC = 3 cm and AC = 4 cm. Choose the two ...

Maths - G is a circle with chord AB. P is a point outside of G such that PA is ...

math - in the triangle ABC,AB=3 BC =4 CA=2.D is the point on CA such that AD ...

geometry - In triangle ABC, • AB is x cm long • BC is twice the length of AB • ...

Math - If D is the midpoint of AC, is the midpoint of AB,and BD = 12 cm, what is...

Geometry - D is the mid-point of side AB of the triangle ABC, E is mid-point of ...

IB Math - If AB is the same length as CD, BC is 2 cm shorter than AB and BE is 7...

maths --plse help me.. - without using set square or protacter construct 1. ...

chemistry - Consider the following overall reaction which is experimentally ...