Name _____________________________________ Class _____________ Date ____________

Chapter Test	Form A
Chapter 8

I can classify a triangle as acute, right or obtuse given the length of its sides
Example: The lengths of three sides of a triangle are given. Describe each triangle as acute, right, or obtuse.
1. 14, 48, 50	2. 6, 7, 9	3. 

I can use Pythagorean Theorem and special right triangles relations to solve for missing side
Example: Find the values of the variables. Leave your answers in simplest radical form.
4.								5.
6.					7.				                8. 
I can determine the ratio of sin Ѳ, cos Ѳ and tan Ѳ, when Ѳ is an acute angle of a right triangle and the sides of the triangle are given.
Example: Express sin A, cos A, and tan A as ratios.
9.							10. 
I can use SOHCAHTOA to find the measure of a missing side or a missing angle of a right triangle
Example: Find the value of x. Round lengths of segments to the nearest tenth and angle measures to the nearest degree.
11.                                                       12.		             	13. 

I can identify angle of depression and angle of elevation
Example:  Describe each angle as it relates to the objects in the diagram.
a.		b.		c.		d.		

I can solve different situations applying properties of right triangle. 
Example:  14. A surveyor measures the top of a building 50 ft away from him. His angle-measuring device is 4 ft above ground. The angle of elevation to the top of the building is . How tall is the building?

15. A forest ranger looking out from a ranger’s station can see a forest fire at a  angle of depression. The ranger’s position is 100 ft above the ground. How far is it from the ranger’s station to the fire?

16. Let ϴ and β be two angles so ϴ + β = 90o . What is the value of sinϴ - cosβ?

17. If m<ADB= 50o and m<BAD = 90o, what is the value of x?