Advertisements
Advertisements
Question
The perimeter of a rectangle becomes ______ times its original perimeter, if its length and breadth are doubled.
Advertisements
Solution
The perimeter of a rectangle becomes 2 times its original perimeter, if its length and breadth are doubled.
Explanation:
Perimeter of a rectangle with length l and breadth b = 2(l + b)
If the length and the breadth are doubled, then the new perimeter
= 2(2l + 2b)
= 2[2(l + b)]
APPEARS IN
RELATED QUESTIONS
A square and a rectangular field with measurements as given in the figure have the same perimeter. Which field has a larger area?
Mrs. Kaushik has a square plot with the measurement as shown in the following figure. She wants to construct a house in the middle of the plot. A garden is developed around the house. Find the total cost of developing a garden around the house at the rate of Rs 55 per m2.
A flooring tile has the shape of a parallelogram whose base is 24 cm and the corresponding height is 10 cm. How many such tiles are required to cover a floor of area 1080 m2? (If required you can split the tiles in whatever way you want to fill up the corners).
A rectangular piece is 20 m long and 15 m wide. From its four corners, quadrants of radii 3.5 m have been cut. Find the area of the remaining part.
Find the area of Fig. 20.25, in square cm, correct to one place of decimal. (Take π = 22/7)
The length and the breadth of a rectangular plot are 135 m and 65 m. Find, its perimeter and the cost of fencing it at the rate of ₹60 per m.
A wire is in the shape of square of side 20 cm. If the wire is bent into a rectangle of length 24 cm, find its breadth.
What is the part of the plane enclosed by a closed figure known as?
The interior of the rectangle, along with its boundary, is called the:
Which of the following is an example of a closed figure?
