Proportional
Are the following fractions proportional?
(see slide)
No, they are not proportional
Find the scale factor.
(see slide)
1/3 or 3
List our 3 triangle similarity theorems.
AA, SSS, SAS
Write a similarity statement for any similar triangles. (see slide)
Triangle KLR ~ Triangle STV
(check that corresponding vertices are matched in the name)
What letter represents 10 in roman numerals?
X
Are these fractions proportional?
(see slide)
Yes, they are proportional
Find the scale factor.
(see slide)
5/2 or 2/5
Which theorem could we use to prove these triangles are similar?
(see slide)
AA Similarity Theorem
Find the measure of angle PTS. (see slide)
measure of PTS = 85
What is Mr. Steiner's favorite football team?
Green Bay Packers
Solve the proportion for x.
(see slide)
x = 38
(see slide)
x=6
Are the two triangles similar? Why or why not?.
(see slide)
Yes, by SSS. Must have shown ALL 3 sides length ratios are proportional.
Example answer:
9/12 = 12/16 = 18/24 = 3/4
Find the value of x that would make the triangles similar (see slide).
x = 8
What is the state bird of Wisconsin?
Robin
The ratio between two complementary angles is 4:11. What is the measure of each angle?
24, 66
The side length ratio between two pentagons is 7/12. If the perimeter of the larger pentagon is 96in, what is the perimeter of the smaller pentagon?
56in
Are the triangles similar? Why or why not?
(see slide)
No, the side lengths are not proportional.
Find the value of y. (see slide)
y = 9
What is one of Ms. Hennen's dogs names?
Lexa or Archie
(will accept Alexa)
The ratio between the sides of a rectangle is 3:5. What are the lengths of the sides if the perimeter of the rectangle is 192cm.
36cm, 60cm
Triangle A has an area 121 square units and one of it's side lengths is 33 units. Triangle B has an area of 64 square units, find the length of the corresponding side in triangle B.
24 units
Are the triangles similar? Why or why not?
Yes, by SAS since the vertical angles are congruent and the sides are proportional with a scale factor of 2 (or 1/2).
Find the length of PT that would make the triangles similar. (see slide)
PT = 15
Name EVERY US state that starts with the letter N.
Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota