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प्रश्न
The table given below contains some measures of the rectangle. Find the unknown values.
| Length | Breadth | Perimeter | Area |
| ? | 4 feet | ? | 20 sq.feet |
उत्तर
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 |
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