The area of each square on a chess board is 4sqcm. Find the area of
the board.
(a) At the beginning of game when all the chess men are put on the
board, write area of the squares left unoccupied.
(b) Find the area of the squares occupied by chess men
The area of a rectangular field is 1600sqm. If the length of the field
is 80m, find the perimeter of the field.
Divide the park shown in Fig. 6.17 of question 40 into two rectangles.
Find the total area of this park. If one packet of fertilizer is used for
300sqm, how many packets of fertilizer are required for the whole
park?
A wire is cut into several small pieces. Each of the small pieces is
bent into a square of side 2cm. If the total area of the small squares
is 28 square cm, what was the original length of the wire?
Perimeter of a square and a rectangle is same. If a side of the square
is 15cm and one side of the rectangle is 18cm, find the area of the
rectangle.
The perimeter of a square garden is 48m. A small flower bed covers
18sqm area inside this garden. What is the area of the garden that is
not covered by the flower bed? What fractional part of the garden is
covered by flower bed? Find the ratio of the area covered by the
flower bed and the remaining area.
A magazine charges Rs 300 per 10sqcm area for advertising.
A company decided to order a half page advertisment. If each page of
the magazine is 15cm × 24cm, what amount will the company has
to pay for it?
Amita wants to make rectangular cards measuring 8cm × 5cm. She
has a square chart paper of side 60cm. How many complete cards
can she make from this chart? What area of the chart paper will be
left?
The side of a square is 5cm. How many times does the area increase,
if the side of the square is doubled?
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