Luttrell 2012
146
Name: __________________________
Final Exam 7, 8, 9, 10
Basic Geometry
Calculator is allowed from this point onward. You must show work for full credit!!
10. What is the perimeter of the rectangle?
4.2 cm
3.1 cm
11. A rectangle with dimensions
x
and 3
x
- 4 has a perimeter of 24. Find
x
. Then find its area.
12. If the diameter of a circle is 6 cm, what is its circumference? What is its area?
(Leave the answer in terms of π.)
13. What is the area of the triangle?
6
9 cm
14. If a cube has surface area of 150 cm
2
, then what is the volume of the cube?
15
Bonus (2 pts): Find the area of the right triangle: 12