How do we know these two triangles are similar?
All their angles are congruent
figure ABCD ~ figure A'B'C'D'
Give me three proportional equations based on the similarity statement.
ie.
(AB)/(A'B')=(BC)/(B'C')
What is the length of the missing side?
10
How do we know when two figures are similar?
When a series of rigid motions and dilations take one figure to the other.
A flamboyance is a group of what animal?
Flamingos
Solve for x and y.
x=24/5 or 4.8
y=10
Solve for x.
2/x=6/18
x=6
If AB is length 2, what is the length of BD?
sqrt(8) or 2sqrt(2)
Angle ABC is taken by a dilation with center P and scale factor 13 to angle A’B’C’. The measure of angle ABC is 60 degrees. What is the measure of angle A’B’C’?
60 degrees
What is the official animal of Scotland?
Unicorn
Triangle DEF is formed by connecting the midpoints of the sides of triangle ABC. What is the perimeter of triangle ABC?
P=18
Solve for x.
(x+3)/2=2/4
x=-2
What is the length of A'B'?
7.5
Which of these statements is true?
a. To know whether 2 triangles are similar, it is enough to know the measure of 1 angle.
b. To know whether 2 triangles are similar, it is enough to know the length of 1 side.
c. To know whether 2 triangles are similar, it is enough to know the measure of 2 angles in each triangle.
d. To know whether 2 triangles are similar, it is enough to know the measure of 2 sides in each triangle.
C
What fruit is known as the “king of fruits” and is banned in many hotels and public transportation in Southeast Asia due to its strong smell?
Durian
Segment A'B' is parallel to segment AB. What is the length of BB'?
3.5
If x=6, what it y?
y=9/2 or 4.5
16/3
What is the scale factor that takes Q to P?
4/5
What animal's milk is pink?
Hippopotamus
Is line BC parallel to DE? How do you know?
They are NOT parallel because triangle ABC is not similar to triangle ADE.
Find the length of DF or state what additional information is needed to find it.
15/4
The length if segment EF is 8 units and the length of segment ED is 10 units. Find the length of FA.
FA=32/3 or 10.67
Line g is dilated with a center of dilation at A. The image is line f. Approximate the scale factor.
2
What is the name of Batman's Butler?
Alfred