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प्रश्न
The two adjacent sides of a rectangle are 6a + 96 and 8a- 46. Find its, perimeter.
उत्तर
Sides of a rectangle are 6a + 9b
and 8a - 4b
Let, length = 6a + 9b
and breadth = 8a - 4b
∴ Perimeter = 2 (length + breadth)
= 2 (6a + 9b + 8a - 4b)
= 2 (14 a + 5 b)
= 28a + 10b
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