Advertisements
Advertisements
प्रश्न
The length of a rectangle is three times its breadth. If its perimeter is 64 cm, find the sides of the rectangle
Advertisements
उत्तर
Given perimeter of a rectangle = 64 cm
Also given length is three times its breadth
Let the breadth of the rectangle = b cm
∴ Length = 3 × b cm
Perimeter = 64 m
i.e., 2 × (l + b) = 64 m
2 × (3b + b) = 64 m
2 × 4b = 64 m
4b = `64/2` = 32 m
b = `32/4` = 8 m
l = 3 × b
= 3 × 8
= 24 m
∴ Breadth of the rectangle = 8 m
Length of the rectangle = 24 m
APPEARS IN
संबंधित प्रश्न
Find the length and perimeter of a rectangle, whose area = 120 cm2 and breadth = 8 cm
The length of a rectangle is 16 cm and its perimeter is equal to the perimeter of a square with side 12.5 cm. Find the area of the rectangle.
The length of a rectangle is twice of its breadth. If its perimeter is 60 cm, find its length.
Find the perimeter of a regular pentagon of side 8.2 cm.
The length of a rectangle is three times its breadth. If the area of the rectangle is 1875 sq. cm, find its perimeter.
Length and breadth of a rectangular sheet of paper are 20 cm and 10 cm, respectively. A rectangular piece is cut from the sheet as shown in the following figure. Which of the following statements is correct for the remaining sheet?
Length of a rectangular field is 250 m and width is 150 m. Anuradha runs around this field 3 times. How far did she run? How many times she should run around the field to cover a distance of 4 km?
A rectangular piece of land measures 0.7 km by 0.5 km. Each side is to be fenced with 4 rows of wires. What is the length of the wire needed?
What is the perimeter of the following figures? What do you infer from the answers?
 (a) |
 (c) |
 (b) |
 (d) |
Rectangle MNOP is made up of four congruent rectangles (see figure). If the area of one of the rectangles is 8 m2 and breadth is 2 m, then find the perimeter of MNOP.
