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प्रश्न
Find the perimeter of the figure given below:
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उत्तर
We know that, perimeter is the sum of all sides
Perimeter of the given figure = AB + BC + CD + DA
= (5x – y) + 2(x + y) + (5x – y) + 2(x + y)
= 5x – y + 2x + 2y + 5x – y + 2x + 2y
On combining the like terms,
= 5x + 2x + 5x + 2x – y + 2y – y + 2y
= 14x + 2y
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| S. No |
Expression |
Terms | |||||||||
| 1st | 2nd | 3rd | 4th | 5th | ... | 10th | ... | 100th | ... | ||
| 1 | 2n - 1 | 1 | 3 | 5 | 7 | 9 | - | 19 | - | - | - |
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| 5 | n2 + 1 | 2 | 5 | 10 | 17 | - | - | - | - | 10001 | - |
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