A parallelogram has sides A, B, C, and D. Sides A and B have a length of #2 # and sides C and D have a length of # 1 #. If the angle between sides A and C is #(7 pi)/18 #, what is the area of the parallelogram?

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Answer 1 · 2018-07-13T11:07:02

#color(indigo)(A_p ~~ 1.8794)#

Area of a parallelogram #A_p = l * w * sin theta#

#l = 2, w = 1, theta = (7pi)/18#

#A_p = 2 * 1 * sin ((7pi)/18)#

#color(indigo)(A_p ~~ 1.8794)#