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If the altitude of a triangle is increased by 10% while its area remains same, its corresponding base will have to be decreased by
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- 10 %
- 9 %
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9 1 % 11 -
11 1 % 9
- 10 %
Correct Option: C
Let the base of triangle be decreased by x%.
According to the question,
10 - x - | = 0 | |
100 |
⇒ x + | = 10 | |
10 |
⇒ | = 10 ⇒ | = 10 | ||
10 | 10 |
⇒ x = | = 9 | % | ||
11 | 11 |