Proportions
If 2/3 = x/6, What is X?
X = 4
9/15 = x/20. What is X?
X = 12
A triangle has an angle measurement of 41 and the other angle has an measurment of 22. What is the measurement of the thrid angle.
117
Name a shape with 5 sides
Pentagon
What is a congruent shape?
The shapes are the exact same.
If 6/15 = x/20. What is X?
X = 8
8/10 = 6/x. What is X?
X = 7.5
If triangle DJL is similar to triangle EGS. What side corrisponds to DL?
ES
Name a shape with 9 sides
Nonagon
What makes a shape similar?
The shape is scaled
If 6/12 = x/33.6. What is X?
X = 16.8
9.6/12 = 24/x. What is X?
X = 30
If a triangle has an angle of 9 degrees and a right angle, what is the third angle?
81
How many degrees does a pentagon have?
540
What type of angles are always congruent
Veritcal angles
-5b/3 = b+13/2. What is B?
B = -3
4x-1/4 = 22.5/6. What is X?
X = 4
If a triangle has an external angle of 100 and one angle that is 42 degrees, what is the third angle?
58 degrees
1080
When are two angles complemetary?
When they both add up to 90 degrees.
If n-6/2 = 2n+1/3. What is X?
N = -20
X = 5
If there are two similar triangles (ABC and XYZ), and side AB is 4 and XY is 10. What would YZ be if BC is 28?
YZ is 70
How many degrees does a Hendacagon have?
1620 degrees
180 degrees