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प्रश्न
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 longest perimeter?
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उत्तर
- Perimeter of rectangle measuring 1 × 12 cm
= 2 (length + breadth)
= 2 (1 + 12)
= 2 x 13
= 26 cm - Perimeter of rectangle measuring 2 × 6 cm
= 2 (length + breadth)
= 2 (2 + 6)
= 2 × 8
= 16 cm - Perimeter of rectangle measuring 3 × 4 cm
= 2 (length + breadth)
= 2 (3 + 4)
= 2 × 7
= 14 cm
Hence, the rectangle measuring 1 × 12 cm has the longest perimeter.
संबंधित प्रश्न
The length and the breadth of a rectangular field are in the ratio 5: 4 and its area is 3380 m2. Find the cost of fencing it at the rate of ₹75 per m.
Find the perimeter of a rectangle whose:
length = 8 m and breadth = 80 cm
A rectangular field has length = 160m and breadth = 120 m. Find:
(i) the perimeter of the field.
(ii) the length of fence required to enclose the field.
(iii) the cost of fencing the field at the rate of? 80 per meter.
The length of a rectangle is twice of its breadth. If its perimeter is 60 cm, find its length.
Find the perimeter of an isosceles triangle with each equal side = 13 cm and the third side = 10 cm.
Find the perimeter of a regular hexagon of side 6.5 cm.
The perimeter of a square is 60 m, find:
(i) its each side its area
(ii) its new area obtained on increasing
(iii) each of its sides by 2 m.
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.
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?
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.
