1. 7-6 Sine and Cosine of Trigonometry

2. A triangle in which one angle is a right angle is called a right triangle. The side opposite the right angle is called the hypotenuse, and the remaining two sides are called the legs of the triangle. c b a

3. Function name Abbreviation Value
The six ratios of a right triangle are called trigonometric functions of acute angles and are defined as follows:
Function name
Abbreviation
Value

4. hypotenuse
opposite
adjacent c b a

5. c = Hypotenuse = 13 b = Opposite = 12 13 12
Find the value of each of the three trigonometric functions of the angle
c = Hypotenuse = 13
b = Opposite = 12 13 12
Adjacent

7. c a b
To solve a right triangle means to find the missing lengths of its sides and the measurements of its angles.

8. c 4 b

9. Two acute angles are complementary if their sum is a right angle.
and
are complimentary angles c b a

10. h 25
h = 23.49