Advertisements
Advertisements
Question
If P = perimeter of a rectangle, l = its length and b = its breadth; find l, if P = 96 m and b = 28 m.
Advertisements
Solution
Perimeter of a rectangle = 96 m
Breadth (b) = 28 m
Let length = l
P = 2(l + b)
l = `("P" - 2"b")/2`
= `(96 - 2 xx 28)/2`
= `(96 - 56)/2`
= `40/2`
= 20 m
∴ l = 20 m
APPEARS IN
RELATED QUESTIONS
Find the perimeter of a rectangle with length = 24 cm and diagonal = 25 cm
Find the perimeter of a square whose each side is 1.6 m.
A wire is bent in the form of an equilateral triangle of each side 20 cm. If the same wire is bent in the form of a square, find the side of the square.
Write the perimeter of the figure in the box given below it.
If a square of side 1 cm is cut out of the corner of a larger square with side 3 cm (see the figure), what will be the perimeter of the remaining shape?
Two regular Hexagons of perimeter 30 cm each are joined as shown in the following figure. The perimeter of the new figure is ______.
Match the shapes (each sides measures 2 cm) in column I with the corresponding perimeters in column II:
| Column I | Column II |
(A)  |
(i) 16 cm |
(B)  |
(ii) 20 cm |
(C)  |
(iii) 24 cm |
(D)  |
(iv) 28 cm |
| (v) 32 cm |
A farmer who wants to fence his field, must find the perimeter of the field.
A table-top measures 2 m 25 cm by 1 m 50 cm. What is the perimeter of the table-top?
Find the perimeter of the following shape:
An equilateral triangle of side 9 cm.
