Each side of a certain parallelogram has length 4. If the area of the parallelogram is 12. Which of the following is the measure of one of its angles? Answers
A) 30
B) 48.6
C) 60
D) 90
E) 120
area of a parallelogram = b*h   b*h=12   h=12/4= 
<gadget id="calculator">12/4</gadget>
<output>3</output>
3   sin theta=opp/hyp= 3/4   theta = sin inv of 3/4=48.6 deg   48.6
<result>B</result>
Each side of a certain parallelogram has length 4. If the area of the parallelogram is 12. Which of the following is the measure of one of its angles?