Advertisements
Advertisements
Question
If P = perimeter of a rectangle, l= its length and b = its breadth find P, if l = 38 cm and b = 27 cm
Advertisements
Solution
Length (l) = 38 cm
Breadth (b) = 27 cm
We know that,
Perimeter = 2(l + b)
Substituting the values = 2(38 + 27)
= 2(65)
= 130 cm
APPEARS IN
RELATED QUESTIONS
The diameter of a circle is 42 cm, find its perimeter. If the perimeter of the circle is doubled, what will be the radius of the new circle? (Take π = `22/7`)
The perimeters of two squares are in the ratio 8 : 15, find the ratio between the lengths of their sides.
Find the perimeter of each of the following closed figures:
The side of a square is of length 20 mm. Find its perimeter in cm.
Write the perimeter of the figure in the box given below it.

A thin wire 20 centimeters long is formed into a rectangle. If the width of this rectangle is 4 centimeters, what is its length?

Can you make a rectangle with a still longer boundary? I made a rectangle 1 cm wide and 80000 m long. Imagine how long that boundary will be!!! With that much gold wire I can become a king!
Match the following:
| Shapes | Perimeter |
(A) ![]() |
(i) 10 |
(B) ![]() |
(ii) 18 |
(C) ![]() |
(iii) 20 |
(D) ![]() |
(iv) 25 |
In an exhibition hall, there are 24 display boards each of length 1 m 50 cm and breadth 1 m. There is a 100 m long aluminium strip, which is used to frame these boards. How many boards will be framed using this strip? Find also the length of the aluminium strip required for the remaining boards.
Find the perimeter of the following shape:
An isosceles triangle with equal sides of 8 cm each and the third side of 6 cm.




