Question

what is the other diagonal if the sides of a parallelogram is 11.7 inchs and 15.0 inches respectively and the other diagonal is 13.1 inches

Answer 1

Let ABCD be the parallelogram with AD=BC=15",
AB=DC=11.7" & AC=13.1", then
cosB=(11.7^2+15^2-13.1^2)/2(11.7)(15)=...
B=57.17*=> (correct to 2 decimal pts)
D=57.17*
A=180*-57.17*=> ( AD//BC)
A=122.83*=>
C=122.83*
The other diagonal is BD:
BD^2=11.7^2+15^2-2(11.7)(15)cos122.83*
=>BD=23.5"

Answer 2

can u give an illustration?

Answer 3

heyyah mr. creepy tnx for the help.. i owe u ;)

Answer 4

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