A text book for children is meant to have `216 sq`. cm of actual printed matter on each page.Also the top and bottom margins are 3 cms each and the left and right margins are 2 cms each. The most economical area (in sq. cm) of each page is

A rectangular sheet of paper has area 24 sq. meters. The margin at the top and at the bottom are 75 cm each and at the sides 50 cm each. What are the dimensions of the paper, if the area of the printed space is maximum?

The length of each edge of a regular tetrahedron is 12 cm. The area (in sq. cm) of the total surface of the tetrahedron is

A printed page is to contain 96cm^(2) of printed area , a margin of 1.5 cm at the top and bottom and a margin of 1 cm at the sides . What are the dimensions of the smallest page that would fulfil the requirements ?

A rectangular page is to contain 24cm^(2) of print. The margins at the top and bottom of the page are 1.5 cm and the margins at other sides of the page is 1 cm. What should be the dimensions of the page so that the area of the paper used is minimum.

Find the area and perimeter of each of the following figures, if the area of each small square is 1 sq cm.

Find the area of an equilateral triangle having each side 4 cm.