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Question
The table given below contains some measures of the rectangle. Find the unknown values.
| Length | Breadth | Perimeter | Area |
| 10 m | ? | ? | 120 sq.m |
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Solution
l = 10 m
Area = 120 sq metre
Area = l × b sq.m
120 = 10 × 6
b = `120/10`
b = 12 m
Perimeter = 2(l + b) units
= 2(10 + 12) units
= 2 × 22 m
p = 44 m
Completing the unknown values in the table.
| Length | Breadth | Perimeter | Area |
| 10 m | 12 m | 44 m | 120 sq.m |
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