Question

the adjacent side of parallelogram ABCD measures 3.4 and 20cm and the diognals AC measures 42 cm . Find the area of the parallelogram .

Answer 1

Answer:

Step-by-step explanation:

There is something wrong in the length. Bcoz ABC is not formed a triangle. Sum of two sides must be greater than 3rd one. Here 20+3.4<42

Otherwise for abc triangle u can use scalene triangle area formula

Area=√(s×(s-a)(s-b)(s-c)

Where s is semiperimeter and a b c are d sides of a triangle.

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