Sine, Cosine and Tangent
Similarity
Pythagorean Theorem and Special Right Triangles
Geometry Vocabulary
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?
Congruent angles, proportional sides
100
How do we write out Pythagorean Theorem?
a2+b2=c2
100
What type of angle is 90 degrees?
Right angle
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
What are the Two special right triangles we know about?
45-45-90 and 30-60-90
200
What are the names of lines that intersect at a 90 degree angle?
Perpendicular lines
300
What ratio is equal to
(opp)/(adj)
Tangent (or Tan)
300
Corresponding angles in similar triangles are what?
Congruent
300
What does x equal? (remember your units)
6 cm
300
What is the name of a quadrilateral that has four equal sides and the opposite sides are parallel side?
A Rhombus
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
45-45-90 triangles are half of which shape?
Square
400
When two parallel lines are cut by a transversal line, give one pair of angles that are congruent.
Alternate Interior
Alternate Exterior
Corresponding
500
Solve for Angle A.
23.6 Degrees (or about 24)
500
Are these two triangles similar? How do you know?
yes, SAS theorem.
500
30-60-90 Right Triangles are half of which shape?
Equilateral Triangles
500
What are lines that are always the same distance apart and do not share any points?
Parallel lines