Advertisements
Advertisements
प्रश्न
A thin wire 20 centimeters long is formed into a rectangle. If the width of this rectangle is 4 centimeters, what is its length?
उत्तर
Given perimeter of rectangle = 20 cm
Width of a rectangle = 4 cm
We know, perimeter of rectangle = 2 (length + breadth)
20 = 2 length + 2 breadth
2 length = 20 - 2 breadth
2 length = 20 - 2 x 4
2 length = 20 - 8
length = 12/2
= 6 cm
APPEARS IN
संबंधित प्रश्न
The cost of fencing a square field at the rate of ₹ 75 per meter is ₹ 67,500. Find the perimeter and the side of the square field.
Find the perimeter of a square whose each side is 1.6 m.
Find the side of the square whose perimeter is 5 m.
The side of a square is of length 20 mm. Find its perimeter in cm.
Find the area and perimeter of 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 |
The area of a rectangular shaped photo is 820 sq.cm. and its width is 20 cm. What is its length? Also find its perimeter
What is its perimeter __________
| Shapes | Perimeter |
(A) |
(i) 10 |
(B) |
(ii) 18 |
(C) |
(iii) 20 |
(D) |
(iv) 25 |
To find the cost of painting a wall we need to find the perimeter of the wall.
In an exhibition hall, there are 24 display boards each of length 1m 50 cm and breadth 1 m. There is a 100m 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.
What is the length of outer boundary of the park shown in the given figure? What will be the total cost of fencing it at the rate of Rs 20 per metre? There is a rectangular flower bed in the center of the park. Find the cost of manuring the flower bed at the rate of Rs 50 per square metre.
Length of a rectangular field is 6 times its breadth. If the length of the field is 120 cm, find the breadth and perimeter of the field.
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.
Out of two figures if one has larger area, then its perimeter need not to be larger than the other figure.
