Advertisements
Advertisements
प्रश्न
A square park has 40 m as its perimeter. What is the length of its side? Also find its area
Advertisements
उत्तर
Given perimeter = 40 m
Perimeter of a square = 4 × Length of a side
40 = 4 × Length of a side
∴ Length of its side = `40/4` m
= 10 m
∴ Side of the park = 10 m
Area of a square = (side × side) unit2
= (10 × 10) m2
= 100 m2
∴ Area of the Park = 100 m2
APPEARS IN
संबंधित प्रश्न
The length and the breadth of a rectangular piece of land are 500 m and 300 m respectively. Find the cost of the land, if 1 m2 of the land costs Rs 10,000.
Find the area of a square park whose perimeter is 320 m.
The length of the side of the square is given below. Find its area.
25 metres
What will be the area of a new square formed if the side of a square is made one-fourth?
The area of each square on a chess board is 4 sq cm. Find the area of the board.
- At the beginning of game when all the chess men are put on the board, write area of the squares left unoccupied.
- Find the area of the squares occupied by chess men.
Find the area and perimeter of the following figure, if area of small square is 1 sq cm.
Find the area of the square whose sides are:
10 cm
A table-top measures 2 m by 1 m 50 cm. What is its area in square metres?
A square tile of length 20 cm has four quarter circles at each corner as shown in the following figure (i). Find the area of shaded portion. Another tile with same dimensions has a circle in the centre of the tile [see figure (ii)]. If the circle touches all four sides of the square tile, find the area of the shaded portion. In which tile, area of shaded portion will be more? (Take π = 3.14)
 |
 |
| (i) | (ii) |
Architects design many types of buildings. They draw plans for houses, such as the plan shown in the following figure:
An architect wants to install a decorative moulding around the ceilings in all the rooms. The decorative moulding costs ₹ 500/metre.
- Find how much moulding will be needed for each room.
(i) family room
(ii) living room
(iii) dining room
(iv) bedroom 1
(v) bedroom 2 - The carpet costs ₹ 200/m2. Find the cost of carpeting each room.
- What is the total cost of moulding for all the five rooms.
