A parallelogram has sides A, B, C, and D. Sides A and B have a length of #1 # and sides C and D have a length of # 9 #. If the angle between sides A and C is #(3 pi)/4 #, what is the area of the parallelogram?

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Answer 1 · 2016-08-13T09:48:58

#=6.36#

Area of the Parallelogram #=ab sin theta# where#a=1# and #b=9# are the sides and #theta=(3pi)/4#
Hence Area #=(1)(9)sin((3pi)/4)=9(0.707)=6.36#