SOLUTION: Hello! This problem is very confusing for me. I know that a parallelogram has two pairs of congruent sides (bxh), however this problem is not making sense. Find the area of a pa

Question 31171: Hello! This problem is very confusing for me. I know that a parallelogram has two pairs of congruent sides (bxh), however this problem is not making sense.
Find the area of a parallelogram whose sides are 6 inches and 8 inches and whose longer diagonal is 12 inches.
I would really appreciate any help solving this problem. I've tried drawing a picture and everything, but nothing has worked. Thank you for your time.
Answer by longjonsilver(2297) (Show Source): You can put this solution on YOUR website!
the method that springs to mind here is the Cosine Rule to find an angle then to use Area of triangle=(1/2)absinC etc.

Have you done this? If not, then this is not the approach for you. I cannot think of another method.

jon.

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