SOLUTION: The nonparallel sides of a trapezoid are 13 and 20, a third side is 9, and the trapezoid's height is 12. Find the possible lengths for the fourth side of the trapezoid

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Question 1006670: The nonparallel sides of a trapezoid are 13 and 20, a third side is 9, and the trapezoid's height is 12. Find the possible lengths for the fourth side of the trapezoid
Answer by anand429(138) About Me  (Show Source):
You can put this solution on YOUR website!
Case-I
x=+sqrt%2820%5E2-12%5E2%29+%2B+sqrt%2813%5E2-12%5E2%29+%2B+9
=> x+=+30
Case-I
x=+sqrt%2820%5E2-12%5E2%29+-+sqrt%2813%5E2-12%5E2%29+%2B+9
=> x+=+20
Draw figures to understand clearly