Proportion/Scale Drawing
Similar Figures
Triangles
Angle Relations
Vocabulary
100
Solve for x.
6
100
Write a similarity statement
ABCD~JMLK or BCDA~MLKJ or CDAB~LKJM or DABC~KJML
100
What do the interior angles of a triangle add up to?
180 degrees
100
Solve for the missing angle
145 degrees
100
What are complementary angles?
Two angles whose degrees add up to 90 degrees
200
4 in
200
What makes geometric figures similar?
Proportional sides and congruent corresponding angles.
200
Solve for x
x=-3 degrees
200
Find m<A
m<A=44 degrees
200
What are supplementary angles?
Two angles that add up to 180 degrees.
300
2 in
300
Determine if the trapezoids are similar. You must show work to get the points. 
Yes
300
Determine if this is a triangle. 
No. The angles don't add up to 180 degrees.
300
Solve for the angle
135 degrees
300
What is an obtuse angle?
An angle greater than 90 degrees and less than 180 degrees.
400
Round to the nearest cent. 
$20.39
400
Solve for x.
x=143
400
Can you make a triangle with side lengths of 4, 8, and 12?
NO! The two smallest side lengths must be greater than the longest side.
400
Solve for x
x=-6 degrees
400
Draw a picture of vertical angles and say what we know about them.
Vertical angles are congruent(equal) to one another.
500
What is the actual length and width of the porch?
16yd by 32yd
500
Solve for x.
x=13
500
If you are given the degree measures of 24, 96, and 60, can you make one, many, or no triangles?
Many!
500
Solve for the angle
64 degrees
500
Name two types of angles that are also classified as adjacent angles.
Complementary and supplementary