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 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.
Find the shaded area in the given figure.
Write the perimeter of the figure in the box given below it.
The table given below contains some measures of the rectangle. Find the unknown values.
| Length | Breadth | Perimeter | Area |
| ? | 4 feet | ? | 20 sq.feet |
A thin wire 20 centimeters long is formed into a rectangle. If the width of this rectangle is 4 centimeters, what is its length?
Take a thick paper sheet of length 14 cm and width 9 cm. You can also use an old postcard.
- What is its area? What is its perimeter?
Find the perimeter of the following figure:
Find the perimeter of the following figure:
Find the perimeter of the following shape:
An isosceles triangle with equal sides of 8 cm each and the third side of 6 cm.
