Similarity Theorems
Similar Triangles
Similar Polygons
Special Segments
Random
100
By what theorem can these triangles be proved similar?
AA or AAA
100
Triangles LKJ and RQP are similar. What is KJ?
22
100
What scale factor from the quad. on the left to the right?
1/2
100
What special segment is identified in the triangle?
perpendicular bisector
100
Identify a median.
BG
200
Are these triangles similar? By what theorem?
Yes, by SSS
200
Triangle ABC ~ Triangle XYZ. AB=4,BC=5,AC=6,and xZ=18 Find the perimeter of XYZ.
What is the perimeter of XYZ=45?
200
Solve for x if quadrilateral NPQM~ quadrilateral SRUT.
What is x=15
200
DE is the midsegment of triangle ABC and parallel to BC. BC=14. Find DE.
What is DE=7.
200
Identify an altitude.
CD
300
What theorem can we use to show triangle BED is similar to triangle BCA?
SAS
300
What is CB?
110
300
What is z?
115
300
What special segment is PN in the triangle?
altitude
300
Find z
z=4
400
Are these triangles similar? By what theorem?
Yes, by AA similarity.
400
A flagpole casts a shadow at 5 meters long. Adam near the pole casts a shadow of .5 meters. Adam is 1.75 meters tall. Find the height of the flagpole.
What is 17.5 meters?
400
Triangle ABC ~ Triangle PQR. Angle QPR=40 degrees, angle PQR=60 degrees. Find angle ACB.
angle ACB= 80 degrees
400
What special segment is the green dashed line in the triangle?
angle bisector
400
36.6 feet.
500
Not similar
500
800 cm
500
What is x?
x=7
500
What special segment is the dashed red line in the triangle?
median
500
Solve for x.
x=20