The diameter of a circle is 8 in. Find the circumference and area.
C = 8π in or 25.1 in
A = 16π in or 12.6 in
What does it mean when two shapes are similar?
same shape, different sizes
Dilations
The angles of a triangle are 5x, 8x, and 6x. Solve for x.
x=10
What day and time is your final?
Period 1 - 7:20-9:30 am on Tuesday
Period 2 - 9:40-11:50 am on Tuesday
Period 3 - 7:20-9:30 am on Wednesday
Period 4/5 or 5/6 - 9:40-11:50 am on Wednesday
Period 6/7 or 7/8 - 7:20-9:30 on Thursday
Period 8/9 or 9/10 - 9:40-11:50 am on Thursday
Period 11 - 7:20-9:30 am on Friday
Make-up Finals- 9:40-11:50 am on Friday
Find Angle D and Arc DC
Angle D = 38
Arc DC = 90
Corresponding angles in similar triangles are what?
Congruent
List the points for the image after a dilation by a scale factor of 1/3
A: (12,-3)
B: (9,12)
C: (-21,-6)
A': (4,-1)
B': (3,4)
C': (-7,-2)
If you have a 45°-45°-90° triangle whose hypotenuse is 6√2, what are the lengths of the other two sides?
6
True or False: To name a plane you use three collinear points on the plane
False: you use three NONCOLLINEAR points
Find the sector area that has a central angle of 60° and a radius of 12 yd.
24π yd2 or 75.4 yd2

ED = 6
Put this translation into mathematical notation: Translation of 4 units up and 6 units to the left.
(x,y) --> (x-6,y+4)
This is a right triangle. Solve for x. (Hint: what formula should you use?)
6 cm
Find the distance and midpoint between the points
(5, 0) and (1, 4)
distance - √32
midpoint - (3,2)
Find the mean, median, mode, range and outlier of the following data points
3, 7, 14, 11, 12, 3, 35, 16
Mean: 12.6
Median: 11.6
Mode: 3
Range: 32
Outlier: 35
If these two triangles are similar, solve for x.

x= 13.5
What is the volume for a sphere with diameter 10 cm?
166.7π or 523.6 cm3
Solve for Angle B?
Angle B = 66.4°
Angle ABC is bisected by ray BD. If angle ABD is 60°, what is the measure of angle DBC?
60°
6/5814 = 1/969
DE || AB. Solve for x
x = 9
What is the surface area of a square pyramid with slant height of 5m and side length of 4m?
56m2
What is the value of x?
x=43.8
Point Y is located between points X and Z. The distance from point X to point Z is 50 ft. The distance from point X to point Y is 20 ft. The distance from point Y to point Z is 3x+9. Solve for x
x=7