Advertisements
Advertisements
प्रश्न
A rectangular piece of paper has area = 24 cm² and length = 5 cm. Find its perimeter.
उत्तर
∵ Area of rectangle = length × breadth
⇒ 24 cm2 = 5 cm × breadth
⇒ breadth = `(24 "cm"^2)/("5 cm") = 4.8 "cm"`
and, perimeter = 2 × (l + b)
= 2 × (5 cm + 4.8 cm)
= 2 × 9.8 cm
= 19.6 cm
APPEARS IN
संबंधित प्रश्न
The perimeter of a rectangle is 46 m and its length is 15 m. Find its :
(i) breadth
(ii) area
(iii) diagonal.
Each side of a square field is 70 cm. How much distance will a boy walk in order to make?
(i) one complete round of this field?
(ii) 8 complete rounds of this field?
The length of a rectangle is twice of its breadth. If its perimeter is 60 cm, find its length.
Each side of a square tile is 60 cm. How many tiles will be required to cover the floor of a hall with length = 50 m and breadth = 36 m.
Look at the figures on the sheet of graph paper. Measure their sides with the help of the lines on the graph paper. Write the perimeter of each in the right box.
- Perimeter of rectangle ABCD = ______ cm.
- Perimeter of rectangle EFGH = ______ cm.
- Perimeter of square PQRS = ______ cm.
- Perimeter of rectangle STUV = ______ cm.
Find the perimeter of the following figure
Find the perimeter of a rectangle, whose sides are 12 cm and 8 cm
Length of a rectangle is three times its breadth. Perimeter of the rectangle is 40 cm. Find its length and width.
What is the radius of the largest circle that can be cut out of the rectangle measuring 10 cm in length and 8 cm in breadth?
Rectangle MNOP is made up of four congruent rectangles (Figure). If the area of one of the rectangles is 8 m2 and breadth is 2 m, then find the perimeter of MNOP.
