SEARCH HOME
Math CentralQuandaries & Queries

search

Felicia, a parent:

A rectangle whose base is twice its altitude is inscribed in a circle whose radius is 5 mm.
Find the area of the rectangle.

Hi Felica,
In my diagram I let a mm be the altitude of the rectangle. What is the length of the base?

Angle CAB is a right angle. What is the length of AB? What is the length of CA? What does Pythagoras theorem say for triangle CAB?

Solve for a.

Penny

About Math Central
 

 


Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.
Quandaries & Queries page Home page University of Regina PIMS