Vocabulary
Sin/Cos/Tan
Inverse Sin/Inverse Cos/ Inverse Tan
Special Right Triangles
Area of a Triangle/Solving a Right Triangle
100
This trig function is used when you know the opposite side of and angle and the hypotenuse of a right triangle.
What is sine or inverse sine?
100
The sine of angle A.
What is
10/26 = 5/13 = 0.38 ?
100
The measure of angle A
What is 23 degrees?
100
sin(42) rounded to three decimal places
0.669
100
A= ★ ; O = ♥ ; H = ■ . What is the Sine ratio?
♥/■
200
This trig function is used when you know the adjacent side of an angle and the hypotenuse of a right triangle.
What is cosine or inverse cosine?
200
The cosine of angle C.
What is
10/26 = 5/13 = 0.38 ?
200
The measure of angle C
What is 67 degrees?
200
tan(84) rounded to three decimal places
9.514
200
A= ★ ; O = ♥ ; H = ■ . What is the Cosine ratio?
★/■
300
This trig function is used when you know the opposite side of an angle and the adjacent side of the same angle of a right triangle.
What is tangent or inverse tangent?
300
The tangent of angle A
What is
10/24 = 5/12 = 0.42 ?
300
The measure of angle A and angle B
What is 28 degrees (A) and 62 degrees (B)?
300
cos(33) rounded to three decimal places
0.839
300
A= ★ ; O = ♥ ; H = ■ . What is the Tangent ratio?
♥/★
400
What mode do you have to be on in your calculator?
Degree
400
The sine, cosine and tangent of angle A.
What is 8/17 = 0.47 (sine), 15/17 = 0.88 (cosine), and 8/15 = 0.53 (tangent)?
400
The measure of angle B
What is
sin^-1(x/z);cos^-1(y/z);tan^-1(x/y) ?
400
tan(56) rounded to three decimal places
1.483
400
The missing side lengths and angles in the right triangle below. Side lengths are rounded to the nearest hundredth and angles are measured to the nearest degree.
What is 54 degrees (angle C), 8.65 (AC), and 5.09 (BC)?
500
What does SOHCAHTOA stand for?
(Say each word out loud in order)
Sine, Opposite, Hypotenuse, Cosine, Adjacent, Hypotenuse, Tangent, Opposite, Adjacent
500
The sine, cosine and tangent of angle A and angle B
What is y/z (sine), x/z (cosine) and y/x (tangent) for angle A and x/z (sine), y/z (cosine) and x/y (tangent) for angle B?
500
The measure of angle A
What is
sin^-1(y/z);cos^-1(x/z);tan^-1(y/x) ?
500
cos(37) rounded to two decimal places
0.80
500
The missing side lengths and angles in the right triangle below. Side lengths are rounded to the nearest hundredth and angles are measured to the nearest degree.
What is 71 degrees (angle C), 19 degrees (angle B), and 14.14 (AB)?