Hi Nishant,
Check Theorem 9.1 here https://www.teachoo.com/4294/1052/Theorem-9.1---Class-9th---Parallelograms-on-same-base-and-between-same-parallels-are-equal-in-area/category/Theorems/
Written on Feb. 22, 2017, 2:55 p.m.
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Answer of this question
Parallelograms on the same base and between the same parallels are equal in areas
Davneet Singh
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