Advertisements
Advertisements
प्रश्न
The length of a rectangular field is 8 m and breadth is 2 m. If a square field has the same perimeter as this rectangular field, find which field has the greater area.
उत्तर
We have given, perimeter of the rectangular field = perimeter of the square field
⇒ 2(length + breadth) = 4 × side
⇒ 2(8 + 2) m = 4 × side
⇒ 2(10) m = 4 × side
⇒ 20 m = 4 × side
⇒ `20/4` m = side
⇒ side = 5 m
Now, area of the rectangular field = length × breadth = 8 m × 2 m = 16 m2
Area of the square field = side × side = 5 m × 5 m = 25 m2
∴ The square field has greater area than that of rectangular field.
APPEARS IN
संबंधित प्रश्न
A door of length 2 m and breadth 1 m is fitted in a wall. The length of the wall is 4.5 m and the breadth is 3.6 m (see the given figure). Find the cost of white washing the wall, if the rate of white washing the wall is Rs 20 per m2
A square park has 40 m as its perimeter. What is the length of its side? Also find its area
The length of the side of a square is given below. Find its area
5 cm
Rectangular wall MNOP of a kitchen is covered with square tiles of 15cm length (see figure)). Find the area of the wall.
Amita wants to make rectangular cards measuring 8 cm × 5 cm. She has a square chart paper of side 60 cm. How many complete cards can she make from this chart? What area of the chart paper will be left?
The area of each square on a chess board is 4sqcm. Find the area of the board.
(a) At the beginning of game when all the chess men are put on the board, write area of the squares left unoccupied.
(b) Find the area of the squares occupied by chess men.
If p squares of each side 1 mm makes a square of side 1 cm, then p is equal to ______.
Area of the square MNOP of the given figure is 144 cm2. Area of each triangle is ______.
Rani bought a new field that is next to one she already owns in the given figure. This field is in the shape of a square of side 70 m. She makes a semi-circular lawn of maximum area in this field.
- Find the perimeter of the lawn.
- Find the area of the square field excluding the lawn.
