Sine, Cosine and Tangent
Similarity
Complementary Angles
Pythagorean Theorem and Special Right Triangles
100
What is the phrase we use to help us remember our Trigonometric Ratios?
SohCahToa
100
What does it mean when two shapes are similar?
same Proportions, different sizes
100
Write the expression in terms of cosine
sin 9 (degrees)
cos = 81 (degrees)
100
How do we write out Pythagorean Theorem?
a2+b2=c2
200
What does the C in Cah stand for?
Cosine
200
What are two of the three similarity Theorems
AA Theorem, SSS Theorem, SAS Theorem
200
Write the expression in terms of cosine
sin 77 (degrees)
cos = 13 (degrees)
200
What are the Two special right triangles we know about?
45-45-90 and 30-60-90
300
What ratio is equal to
(opp)/(adj)
Tangent (or Tan)
300
Corresponding angles in similar triangles are what?
Congruent
300
Write the expression in terms of sine
cos = 15 (degrees)
sin = 75 (degrees)
300
What does x equal?
6 units
400
Which Trigonometric Ratio should I use to solve for Angle B?
Cosine (Cos)
400
Are these two triangles similar? How do you know?
yes, AA Theorem.
400
Write the expression in terms of sine
cos = 45 (degrees)
sin = 45 (degrees)
400
45-45-90 triangles are half of which shape?
Square
500
Solve for Angle A.
500
Are these two triangles similar? How do you know?
yes, SAS theorem.
500
What's the scale factor between these two triangles?
3 or 1/3
500
30-60-90 Right Triangles are half of which shape?
Equilateral Triangles
