Download 8.4 Sine Cosine Tangent Homework

8.4 Trig Ratios (Day 1)
Homework
Name ____________________________
Find the indicated trigonometric ratio as a fraction. You do not need to solve for the angle.
1.
sinA = _________
4.
sinB = _________
2.
tanA = _________
5.
cosB = ________
29 cm
B
A
21 cm
20 cm
3.
cosE = _________
6.
E
tanF = _________
40 in.
24 in.
C
D
32 in.
Draw a 30-60-90 triangle. Find each trig ratio. State your answers as fractions.
7.
Triangle:
8.
sin 60º = ____________
9.
cos 60º = ____________
10.
tan 30º = ____________
Find the value of x. Round measures of segments to the nearest tenth and angle measures to the
nearest degree.
x
11.
12.
17º
13
7
9.7
x
13.
14.
16
x
15
10
x
12
F
8
15.
16.
x
36º
x
4
17.
6
In ∆XYZ, Z is a right angle. If sinX = 3/5,
find tan Y.
18.
70º
x
7.2
In ∆ABC, C is a right angle. If cosB = 12/13, find sinB.
19.
20. (Advanced) Solve for x and y
21. (Advanced) Solve for x and y
x
x
18
24
27
32º
y
y