Advertisements
Advertisements
Question
What is the perimeter of the following figures? What do you infer from the answers?
 (a) |
 (c) |
 (b) |
 (d) |
Advertisements
Solution
- Perimeter of the square = 4 × side
= 4 × 25
= 100 cm - Perimeter of rectangle = 2 (40 + 10)
= 2 × 50
= 100 cm - Perimeter of rectangle = 2 (Length + Breadth)
= 2 (30 + 20)
= 2 (50)
= 2 × 50
= 100 cm - Perimeter of triangle = 30 + 30 + 40
= 100 cm
∴ All the figures have the same perimeter.
RELATED QUESTIONS
Find the length and perimeter of a rectangle, whose area = 120 cm2 and breadth = 8 cm
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.
Find the perimeter of a rectangle whose:
length = 8 m and breadth = 80 cm
A farmer has a rectangular field of length and breadth 240 m and 180 m respectively. He wants to fence it with 3 rounds of rope as shown in the figure. What is the total length of rope he must use?
How much wire will be needed to make a rectangle 7 cm long and 4 cm wide?
The length of a rectangle is three times its breadth. If its perimeter is 64 cm, find the sides of the rectangle
Find the perimeter of the following figure
The length of a rectangular field is twice its breadth. Jamal jogged around it four times and covered a distance of 6 km. What is the length of the field?
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.
A large square is made by arranging a small square surrounded by four congruent rectangles as shown in the following figure. If the perimeter of each of the rectangle is 16 cm, find the area of the large square.
