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Question
The table given below contains some measures of the rectangle. Find the unknown values.
| Length | Breadth | Perimeter | Area |
| 13 cm | ? | 54 cm | ? |
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Solution
l = 13 cm
p = 54 cm
Perimeter = 2(l + b) units
54 = 2(13 + b) cm
`54/2` = 13 + b
27 = 13 + b
b = 27 – 13
b = 14 cm
Area = l × b sq.unit
= 13 × 14 cm2
A = 182 cm2
Completing the unknown values in the table.
| Length | Breadth | Perimeter | Area |
| 13 cm | 14 cm | 54 cm | 182 cm2 |
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