Advertisements
Advertisements
प्रश्न
If every side of a rectangle is doubled, then its area becomes _______ times
विकल्प
2
3
4
6
उत्तर
4
Explanation;
Hint:
2l × 2b = 4l × b
APPEARS IN
संबंधित प्रश्न
Each side of a rectangle is doubled. Find the ratio between :
(i) perimeters of the original rectangle and the resulting rectangle.
(ii) areas of the original rectangle and the resulting rectangle.
The length and the breadth of a conference hall are in the ratio 7: 4 and its perimeter is 110 m. Find:
(i) area of the floor of the hall.
(ii) a number of tiles, each a rectangle of size 25 cm x 20 cm, required for the flooring of the hall.
(iii) the cost of the tiles at the rate of ₹ 1,400 per hundred tiles.
Find the perimeter of a rectangle whose:
length = 3.6 m and breadth = 2.4 m
Find the perimeter of a regular hexagon of side 6.5 cm.
A regular pentagon of each side 12 cm has same perimeter as that of a regular hexagon. Find the length of each side of the hexagon.
If A denotes area of a rectangle, l represents its length and b represents its breadth, find:
b, if A = 88 m² and l = 8m
Find the perimeter of the following figure
Each rectangle is made out of 12 equal squares, so all have the same area, but the length of the boundary will be different.
Which of these rectangles has the smallest perimeter?
Length of a rectangle is three times its breadth. Perimeter of the rectangle is 40 cm. Find its length and width.
What is the perimeter of the following figures? What do you infer from the answers?
 (a) |
 (c) |
 (b) |
 (d) |
