Advertisements
Advertisements
Question
The area of a rectangle is 102 sqcm. If its length is 17 cm, what is its perimeter?
Advertisements
Solution
Area of rectangle = l × b
102 = 17 × b
b = `102/17 = 6` cm
Perimeter of rectangle = 2(l + b)
= 2(17 + 6)
= 2 × 23
= 46 cm
∴ The Perimeter of the rectangle is 46 cm.
RELATED QUESTIONS
As shown in the figure, four napkins, all of the same size, were made from a square piece of cloth of length 1 m. What length of lace will be required to trim all four sides of all the napkins?

A page of a calendar is 45 cm long and 26 cm wide. What is its area?
What is the value of a rectangular plot of land 75.5 m long and 30.5 m broad at the rate of 1000 rupees per square metre?
Find the area of a rectangle whose length and breadth are 12 cm and 4 cm respectively.
The area of a rectangular piece of cardboard is 36 sq cm and its length is 9 cm. What is the width of the cardboard?
Find the area in square metre of a piece of cloth 1m 25 cm wide and 2 m long.
The length and breadth of a rectangular sheet of a paper are 15 cm and 12 cm respectively. A rectangular piece is cut from one of its corners. Which of the following statement is correct for the remaining sheet?
The length and breadth of a rectangle are as given below:
17m and 3m
By splitting the following figure into rectangles, find their areas (The measures are given in centimetres).

Use the following figure, showing the layout of a farm house:

- What is the area of land used to grow hay?
- It costs ₹ 91 per m2 to fertilise the vegetable garden. What is the total cost?
- A fence is to be enclosed around the house. The dimensions of the house are 18.7 m × 12.6 m. At least how many metres of fencing are needed?
- Each banana tree required 1.25 m2 of ground space. How many banana trees can there be in the orchard?
