SOLUTION: The area of a kite varies jointly with the lengths of its two diagonals. If a kite with the area 30 inches squared has one diagonal of length 10 inches and the other diagonal of l

Question 168319: The area of a kite varies jointly with the lengths of its two diagonals. If a kite with the area 30 inches squared has one diagonal of length 10 inches and the other diagonal of length 6 inches, what is the area of a kite with diagonals of length 8 inches and 13 inches?
Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
find the constant k
:

:
now plug in next set of diagonals using the found value of k to find the area desired
:

sq inches

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