Advertisements
Advertisements
Question
The table given below contains some measures of the square. Find the unknown values.
| Side | Perimeter | Area |
| ? | ? | 49 sq.feet |
Advertisements
Solution
Perimeter of a square = (4 × side) units
Area of a square = (side × side) unit2
Area = s × s unit2
49 = s × s square feet
s2 = 72
s = 7 feet
Perimeter = 4 × s unit
= 4 × 7 feet
= 28 feet
Perimeter = 28 feet
Completing the unknown values in the table
| Side | Perimeter | Area |
| 7 feet | 28 feet | 49 sq.feet |
APPEARS IN
RELATED QUESTIONS
Find the breadth of a rectangular plot of land, if its area is 440 m2 and the length is 22 m. Also find its perimeter.
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
The picture alongside shows some squares. Find out how many squares with the same measures will fit in the empty space in the figure.
The length of the side of a square is given below. Find its area
10 metres
Area of a square is doubled if the side of the square is doubled.
A wire is cut into several small pieces. Each of the small pieces is bent into a square of side 2 cm. If the total area of the small squares is 28 square cm, what was the original length of the wire?
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:
5 m
Five square flower beds each side 1 m are dug on a piece of land 5 m long and 4 m wide. What is the area of the remaining part of the land?
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.
