1. Use the ratio as 12 people in 25 square feet to estimate the size of a crowd that is 10 feet deep on both sides of the street standing along a 2-mile section of a parade route.
(Hint: 1 mile = 5,280 feet)
A. 6,000
B. 10,688
C. 50,688
D. 105,600

If the angle bisectors of a pair of opposite angles of a quadrilateral are the opposite sides of a parallelogram formed by the two angle bisectors and two sides of the quadrilateral, is the quadrilateral always a parallelogram? explain your answer.