Advertisements
Advertisements
Question
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.
Advertisements
Solution
Perimeter of a square = 60 m
(i) Perimeter of a square = 4 x side
60 m = 4 x side
`60/4` = side 4
∴side = 15 m
(ii) Area of square = (side)² = (15 m)²
= 15 m x 15 m
= 225 m²
(iii) Increased each side = 2 m
Side of square = 15 m
New length of side = (2m + 15m)
= 17m
∴ New Area of square = (17m)² = 17m x 17m = 289 m2
APPEARS IN
RELATED QUESTIONS
The length of a rectangle is twice of its breadth. If its perimeter is 60 cm, find its length.
The side of a square is 3.6 cm; find its perimeter.
Each rectangular tile is 40 cm long and 30 cm wide. How many tiles will be required to cover the floor of a room with length = 4.8 m and breadth = 2.4 m.
The cost of flooring a hall of ₹64 per square meter is ₹2,048. If the breadth of the hall is 5m, find:
(i) its length.
(ii) its perimeter.
(iii) cost of fixing a border of very small width along its boundary at the rate of ₹60 per square meter.
A game requires its players to run around a square playground. Each side of the playground is 20 m long. One player took 5 rounds around the playground. How many metres did he run altogether?
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?
The area of a rectangular field is 1600 sq m. If the length of the field is 80 m, find the perimeter of the field.
The lid of a rectangular box of sides 40 cm by 10 cm is sealed all round with tape. What is the length of the tape required?
If a wire in the shape of a square is rebent into a rectangle, then the ______ of both shapes remain same, but ______ may varry.
What is the perimeter of a rectangle?
