2. ABCD is a parallelogram. BD = 2. The angles of triangle BCD are all equal. What is the perimeter of the parallelogram?
12
9√ 3
9
8
3√ 3
6. The slope of the line passing through the point (5,5) is 5/6. All of the following points could be on the line except
(2.5, 2)
(11, 10)
(8, 7.5)
(-1, 0)
(-7, -5)
7. In the figure above the square has two sides which are tangent to the circle. If the area of the circle is 4a²π, what is the area of the square?
2a2
4a
4a2
16a2
64a2
8. A triangle has a perimeter 13. The two shorter sides have integer lengths equal to x and x + 1. Which of the following could be the length of the other side?