Chapter 10

Question 1

45-45-90 Triangle

Answer 1

• Legs= X or 1

- Hypotenuse= X * square root of 2 or square root of 2

Question 2

30-60-90 triangle

Answer 2

• Long leg: X * square root of 3 or square root of 3 (across from 60 degrees)
• Short leg: X or 1 (across from 30)
• Hypotenuse: 2X or 2

Question 3

Sine

Answer 3

• Sin= Opposite/ Hypotenuse
• Opposite= Cosecant (CSC)
• y/r

Question 4

Cosine

Answer 4

• Cos= adjacent/hypotenuse
• Opposite= secant (sec)
• X/r

Question 5

Tangent

Answer 5

• Tan= opposite/adjacent
• Opposite: cotangent (cot)
• y/X

Question 6

How to find the Hypotenuse (R)

Answer 6

-r= square root of x^2 + y^2

Question 7

S=r(0)

Answer 7

• theta= the angle

- r is usually miles