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Name ____________________________ Class ________ Date _____________________
Geometry
Trigonometry Review
1. Find the unknown measures. Round
lengths to the nearest hundredth and
angles to the nearest degree.
3. What is the cosine ratio of R?
4. Which angle has a cosine of
5. Find the measure of F and D to the
nearest degree.
7. What is the measure of A if sin A 
2. To the nearest degree, find the measure
4 .5
of X if tanX =
.
6
3
?
2
3
?
5
6. What is the sine ratio of A?
8. A skateboard ramp makes a 27 angle
with the ground. To the nearest foot, how
high is the
ramp?
Complete each statement. If necessary, round angle measures to the nearest degree.
Round other values to the nearest hundredth.
9. cos 79  ___________
10. sin 22  ___________
11. tan 60  ___________
12. tan_______ _  0.7771
13. sin_______ _  0.8745
14. cos________  0.3891
15. Express the sine, cosine, and tangent of
R as a ratio as a fraction. (be sure to
reduce your answers.)
R
10
5
sin R = ________
cos R = ________
16. When the angle of elevation of the sun is
50, a flagpole casts a shadow that is 16.8
feet long. What is the height of the
flagpole to the
nearest foot?
5 3
tan R = ________
17. From a point on the ground 12 feet in front 18. The angle of elevation from a person lying
of the building, the angle of elevation to
on the ground to a hot air balloon is 37.
the top of the building is 76. How tall is
The balloon is at an altitude of 1500 feet.
the building. Round the answer to the
To the nearest foot, find the horizontal
nearest foot.
distance from the person to a point on the
ground directly below the balloon.
19. Find the value of x and y. Round your
answer to the nearest integer.
20. Find the length of BC and CD. Give your
answers in simplest radical form.
y
47°
x
6
x
3
15
Find the geometric mean of each pair of numbers. Give answers in simplest radical form.
21. 3 and 75
22. 10 and 14