Advertisements
Advertisements
Question
The table given below contains some measures of the rectangle. Find the unknown values.
| Length | Breadth | Perimeter | Area |
| ? | 4 feet | ? | 20 sq.feet |
Advertisements
Solution
b = 4 feet
Area = 20 sq.feet
Area = l × b sq.feet
20 = l × 4
l = `20/4` feet
l = 5 feet
Perimeter = 2(l + b) units
p = 2(5 + 4) feet
= 2 × 9
p = 18 feet
Completing the unknown values in the table.
| Length | Breadth | Perimeter | Area |
| 5 feet | 4 feet | 18 feet | 20 sq.feet |
APPEARS IN
RELATED QUESTIONS
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.
If we take 2 rounds of a field, that is 340 m long and 160 m wide. Find the distance covered in kilometers?
Match the following:
| Shapes | Perimeter |
(A)  |
(i) 10 |
(B)  |
(ii) 18 |
(C)  |
(iii) 20 |
(D)  |
(iv) 25 |
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 equilateral triangle of side 9 cm.
Find the perimeter of the following shape:
An isosceles triangle with equal sides of 8 cm each and the third side of 6 cm.
What is the perimeter of a closed figure?
A closed figure has 12 sides, each measuring 3 cm, except four sides which measure 1 cm each. What is its perimeter?
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?
A polygon with sides 100 m, 120 m, 90 m, 45 m, 60 m, and 80 m has a perimeter of:
