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27 a) A farmer has a triangular shaped field in which he grows vegetables. the perimeter of his field is 300 m and its sides are in the ratio 5 : 12 : 13. Find the length of the perpendicular from the opposite vertex to the longest side.

b) What are the benefits of using locally produced farm products? Mention any two points.

28. Draw a frequency polygon of the given data:-

Class interval | 140-150 | 150-160 | 160-170 | 170-180 | 180-190 | 190-200 |

Frequency | 5 | 10 | 20 | 9 | 6 | 2 |

29. The capacity of a closed cylinder 15.4 liters and its height is 1 m. How many square meters of metal sheet would be needed to make this tank?

https://www.meritnation.com/ask-answer/question/of-a-closed-cylindrical-vessel-of-height-1-m-is-15-4-li/surface-areas-and-volumes/6295856

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Regards

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