Ratios
Proportions
AA/SSS/SAS
Similarity Statements
Similar?
100
How can we tell if two triangles are congruent or similar?
Congruent - same shape, same size
Similar - same shape, different size
100
What is a proportion?
Two fractions set equal to each other.
100
According to the SAS similarity, what do two triangles need to have in order to be similar?
What is a pair of congruent included angles and two pairs of proportional sides?
100
True or false?
A similarity statement must go in alphabetical order
FALSE.
A similarity statement must match the order of both corresponding angles and sides. That may or may not be in alphabetical order.
100
In what ways can triangles be similar?
What are the SAS, AA and SSS similarity methods?
200
If triangle HOP is similar to triangle ILY, which side of ILY would correspond with PO?
YL
200
9/54=x/12
Find x
X=2
200
What makes these triangles similar?
The AA similarity theorem.
Angle u ~ Angle u
Angle wxu ~ Angle vtu
200
What is the correct similarity statement?
NLK ~ NLM
The hypotenuse is congruent, and so are NK and NM
200
Are these triangles similar?
Yes
300
If triangle DEF is congruent to ABC, what angle corresponds with angle A?
A = D
300
Given two equilateral triangles with sides 16 and 18 respectively. The scale factor of the larger triangle to the smaller triangle.
What is 9 to 8?
300
Two right triangles have the following angles: Triangle 1 has a 35 degree angle and Triangle 2 has a 55 degree angle. Are these triangles similar? If so, how?
Yes, by Angle Angle Similarity method.
300
Triangle ABC is similar to triangle RST. Complete this staement: Triangle BCA is similar to ...
What is Triangle STR?
300
Are these similar?
What is not similar?
400
If the sides of triangle FED are 1 cm, 3 cm, and 8 cm, and the sides of triangle CBA are 3 cm, 9 cm, and 24 cm, are the triangles similar?
Yes
400
Find the perimeter of Triangle DEF
What is 33?
400
What similarity theorem are these triangles similar by?
These are similar by the SAS similarity.
400
Given Triangle MNO is similar to Triangle CDE, complete:
Triangle OMN is similar to ....
What is Triangle ECD?
400
Similar? If so, how?
What is yes by SSS similarity?
500
If the sides of triangle ABC are 2 inches, 5 inches, and 6 inches, and the sides of triangle DEF are 4 inches, 10 inches, and 11 inches, are the triangles similar?
No
500
The value of x:
4 /x = x/ 16
What is x equals 8?
500
These are similar according to the SAS similarity theorem.
500
Double Jeopardy...place your bet!
Double Jeopardy!!!
Answer C 80 feet
500
What is congruent in similar triangles?
Angles