if D is a point on the side AB of triangle ABC such that AD:DB=3:2 and E is a point on BC such that DE is parallel to AC. FIND THE RATIO OF AREAS OF TRIANGLE ABC AN TRIANGLE BDE
A spherical water tower has a diameter of 20 feet. (use the value pi=3.143) Aproximately how many cubic fee of water does it contain when it is 3/4 full?
The top of a round table is 4 ft. in diameter. The top splits to allow two extra boards to be inserted. The expansion boards are 4 ft. by 1 1/2 ft. what is the area of the expanded table?