Two opposite sides of a parallelogram each have a length of #14 #. If one corner of the parallelogram has an angle of #(3 pi)/4 # and the parallelogram's area is #70 #, how long are the other two sides?

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Answer 1 · 2016-08-26T12:48:44

#=3.54#

Area of Parallelogram #=70=ab sintheta# where #a=14# and #b=?# and #theta=(3pi)/4#
or
#70=14timesbtimessin((3pi)/4)#
or

#b=70/14times(0.707)#

or

#b=5times(0.707)#

or

#b=3.54#