CK-12-Pre-Calculus Concepts

http://www.ck12.org Chapter 4. Basic Triangle Trigonometry

3.

Answers:

1. The other sides are each^5

√ 2

2.

TABLE4.4:

45 45 90

x x x

√

2

5

x

√

2 = 5

x= √^52 ·

√ 2

√ 2 =^5

√ 2

2

2. The other sides are√2 and√6.

TABLE4.5:

30 60 90

x x√ 3 2 x

2

√

2