Geometry: An Interactive Journey to Mastery

Lesson 17: Trigonometry through Right Triangles

1. Calculate x and y in each diagram, each to two decimal places.
   D௘ͽ

x

y

57°

7

Figure 17.3

E௘ͽ

y x

32°

(^5) Figure 17.4
F௘ͽ
x
y

17°

8

Figure 17.5

G௘ͽ

x

y 50°

3.4

Figure 17.6

H௘ͽ

x

21.313.2° y

Figure 17.7

2. Find the values of a and b in each diagram, each to two decimal places.
   D௘ͽ
   20° 40°

(^5) a b
Figure 17.8
E௘ͽ 2 42°
a
b
Figure 17.9
Problems