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Too tired to use google?diagonal 1=20cm.

diagonal 2=37cm.

AB=25.5cm

S (AMC)= 306cm.

S (ABCD)=?

https://www.quora.com/ABCD-is-a-par...pectively-Find-the-area-of-parallelogram-ABCD

- Jan 30, 2018

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Okay, that makes sense.diagonal 1=20cm.

diagonal 2=37cm.

AB=25.5cm

What?? What is "S( )"? What is "M"? Is it another point? The midpoint where the two diagonals intercept?S (AMC)= 306cm.

S (ABCD)=?

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S is the area. You move one of the diaganals to the side, then that forms a triangle. Then with Heron's formula you figure out the area of the triangle that has formed (AMC). That is suppose to help you figure out the area of the parallelogram using another formula, but I couldn't figure it out.Okay, that makes sense.

What?? What is "S( )"? What is "M"? Is it another point? The midpoint where the two diagonals intercept?

OK; then WHY did you post only this:S is the area. You move one of the diaganals to the side, then that forms a triangle. Then with Heron's formula you figure out the area of the triangle that has formed (AMC). That is suppose to help you figure out the area of the parallelogram using another formula, but I couldn't figure it out.

..............................

diagonal 1=20cm.

diagonal 2=37cm.

AB=25.5cm

S (AMC)= 306cm.

S (ABCD)=?

..............................

You're given the 2 diagonals plus 1 side.

That's plenty of info to calculate the area.

S(AMC) = 306 not required...