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प्रश्न
The table given below contains some measures of the rectangle. Find the unknown values.
| Length | Breadth | Perimeter | Area |
| ? | 15 cm | 60 cm | ? |
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उत्तर
b = 15 cm
p = 60 cm
p = 2 (l + b) units
60 = 2(l + 15) cm
`60/2` = l + 15
30 = l + 15
l = 30 – 15
l = 15 cm
Area = l × b unit2
= 15 × 15 cm2
= 225 cm2
A = 225 cm2
Completing the unknown values in the table.
| Length | Breadth | Perimeter | Area |
| 15 cm | 15 cm | 60 cm | 225 cm2 |
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