Advertisements
Advertisements
Question
Sanya, Aarushi, Manav and Kabir made greeting cards. Complete the table for their cards:
| Whose card | Length | Width | Perimeter | Area |
| Sanya | 10 cm | 8 cm | ||
| Manav | 11 cm | 44 cm | ||
| Aarushi | 8 cm | 80 square cm | ||
| Kabir | 40 cm | 100 square cm |
Advertisements
Solution
Perimeter of Sanya’s card = Sum of all its sides
= 10 + 8 + 10 + 8
= 36 cm
Length of Manav’s card = 11 cm Perimeter of his card = 44 cm
We have to find the width of Manav’s card.
Perimeter of card = Sum of all its sides
= 11 + 11 + sum of 2 other sides
= 22 + sum of 2 other sides
Now, a sum of two other sides
= 44 − 22
= 22 cm
The two other sides of the greeting cards are width. So, the width of Manav’s card
= 22 ÷ 2
= 11 cm
Width of Aarushi’s card = 8 cm Area of the card = 80 square cm
Now, we have to find the length of the card.
Area of card
= Length of card × 8 cm
= 80 square cm
So, on dividing the area of a card by its width, we can get its length.
Therefore, length of Aarushi’s card = 80 ÷ 8
= 10 cm
| Whose card | Length | Width | Perimeter | Area |
| Sanya | 10 cm | 8 cm | 36 cm | 80 square cm |
| Manav | 11 cm | 11 cm | 44 cm | 121 square cm |
| Aarushi | 10 cm | 8 cm | 36 cm | 80 square cm |
| Kabir | 10 cm | 10 cm | 40 cm | 100 square cm |
RELATED QUESTIONS
The diagonal of a square is `12sqrt2` cm. Find its perimeter.
Find the perimeter of a rectangle with length = 24 cm and diagonal = 25 cm
If P = perimeter of a rectangle, l= its length and b = its breadth find P, if l = 38 cm and b = 27 cm
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 interior of a figure is called region of the figure. Is this statement true?
The area of a square is 36 cm2. How long are its sides?
Find the shaded area in the given figure.
A square carrom board has a perimeter of 320 cm. How much is its area?
Match the following:
| Shapes | Perimeter |
(A)  |
(i) 10 |
(B)  |
(ii) 18 |
(C)  |
(iii) 20 |
(D)  |
(iv) 25 |
Perimeter of the shaded portion in the following figure is ______.
AB + _ + _ + _ + _ + _ + _ + HA
A farmer who wants to fence his field, must find the perimeter of the field.
Four regular hexagons are drawn so as to form the design as shown in the following figure. If the perimeter of the design is 28 cm, find the length of each side of the hexagon.
Find all the possible dimensions (in natural numbers) of a rectangle with an area of 36 sq cm, and find their perimeters.
Find the perimeter of the following figure:
What is the length of the wooden strip required to frame a photograph of length and breadth of 32 cm and 21 cm respectively?
Find the perimeter of the following shape:
An isosceles triangle with equal sides of 8 cm each and the third side of 6 cm.
The perimeter of the figure ABCDEFGHIJ is ______.
If you start at point S on a closed figure and move along all line segments to return to S, what distance have you covered?
