Sine, Cosine and Tangent
Similarity
Mathy Math
Triangles
Randomness
100
Name the three trigonometric ratios.
(not the memory aid!)
Sine, Cosine, Tangent
(not SOH CAH TOA)
100
What does it mean when two shapes are similar?
Congruent angles, proportional sides
100
Which of the following sets of numbers could represent the three sides of a triangle?
#1) {5,15,22}
#2) {9,20,30}
#3) {9,19,27}
#4) {8,23,31}
{9,19,27} (#3)
100
How do we write out Pythagorean Theorem?
a2+b2=c2
100
What day is the geometry regents?
Wednesday June 11th
200
What ratio is equal to
(opp)/(adj)
Tangent (or Tan)
200
What are two of the three similarity Theorems
AA Theorem, SSS Theorem, SAS Theorem
200
The line given by −7x+8y=−16 is dilated by a scale factor of k=3, centered at the origin. What is an equation of the image of the line after dilation?
y=7/8x-6
200
What does x equal? 
6
200
How many time has Mr. Elmer been to Disneyland/world ?
A) Less than 2
B) 2-4
C) 5-10
D) More than 10
A) Zero times!
300
Which Trigonometric Ratio should I use to solve for Angle B?
Cosine (Cos)
300
Corresponding angles in similar triangles are what?
Congruent
300
What is an equation of the line that passes through the point (2,6) and is perpendicular to the line x+4y=8?
y=4x-2
300
A man is flying a kite. His hand is 5 feet off the ground. The kite string is 40 feet long and his arm is at a 45 degree angle. with the ground. How high up is the kite? (to the nearest foot)
33 feet.
300
What time should you show up for the geometry regents?
7:45 AM
400
Solve for Angle A. Round to the nearest whole degree. 
24 Degrees
400
Are these two triangles similar? How do you know?
yes, AA Theorem.
400
Find the center and radius of this circle.
X2+y2+8x-6y+16=0
C=(-4,3)
r=3
400
A rectangular pyramid has a height of 12 ft and a volume of 100 cubic ft. One side of the base is 5 feet long, what is the other?
5 feet
400
Ringo Star was the drummer for what band?
The beatles
500
A triangle has two adjacent sides that are 7 and 5. In between them is a 30 degree angle. What is the area of the triangle?
8.75
500
Are these two triangles similar? How do you know?
yes, SAS theorem.
500
A certain regular polygon is rotated 225° about its center, which carries the figure onto itself. Which regular polygon could it be?
Octagon
500
If a midpoint ont he side of a triangle, and i connect it to the opposite vertex I have a ___________. If make one of these for each side of a triangle, where these three lines intersect is called a ____________.
Fill in both blanks.
Median & Centroid
Need both!
500
What are the coordinates of the point on the directed line segment from (−4,4) to (3,−3) that partitions the segment into a ratio of 5 to 2?
(1,-1)