A quadrilateral contains two equal sides measuring 12 cm each and an included right angles. If the measure of the third side is 8 cm and the angle opposite the right angle is 120, find the measure of the fourth side and the area of the quadrilateral.

Question

anonymous · Answer

do you have any diagram attached to the question.....

anonymous · Answer

????

anonymous · Answer

No, sorry. @kausarsalley

nathan917 · Answer

fourth side = 8 cm as it is a kite having sides 12cm, 12cm, 8cm, 8cm and angles 90 opposite 120 and 75 opposite 75 degrees.
area = (12*12/2 + 8*8sin60deg) sqcm = 127.424 sqcm

anonymous · Answer

Uhm, I already did make a-b-c be right angle with sides 12cm long and 90deg between them. I made d be a point that is somewhere between a and c but 8cm from c.
distance abc is right angle triangle with hypotenuse ac=12*sqrt(2). And I don't know what to do next. @nathan917