Ratios and Proportions
Right Triangles
Missing Values
Midpoint
Random
100
If ABCDE is dilated by a scale factor or 2, the length of D'C' will be:
20m
100
Write the trig ratio of sinA
sinA = a/c
100
If all three lines are parallel to each other and are intersected by two transversal lines, are the line segments of the transversal line cut by the parallel line equal proportions?
YES
100
What is a midpoint?
A point on a line segment equally distant from the two endpoints (in the middle)
100
Solve for x: cos(x) = 10/12
cos^-1(10/12)
200
If ABCDE is dilated by a scale factor of 1/2, the length of A'B' will be:
8m
200
Write the trig ratio of sinB
sinB = b/c
200
List out an equivalent proportion
A/B = D/E
A/C = D/F
B/C = E/F
200
What is the midpoint formula?
200
Dilations are centered around the ______,unless otherwise stated.
origin
300
Is the area of ABCDE equivalent to A'B'C'D'E if dilated?
No
300
Solve for x.
x = 12/tan(28)
300
Solve for x
x/3 = 8/4
x = 6
300
Find the midpoint.
Midpoint = (1,2)
300
Proportions are also known as....
an equation where two ratios (fractions) are set equal to each other
400
If ABCDE is dilated by 5, give me a ratio from ABCDE to A'B'C'D'E
A'B'/C'D' = 5 (AB/CD)
400
Solve for angle B
inverse sin (14/21)
400
Find angles x and z.
x: 53 degrees
z: 32 degrees
400
Find the midpoint:
Midpoint = (2.5, 2)
400
SOHCAHTOA means....
Sin(angle) = Opposite/Hypotenuse
Cos(angle) = Adjacent/Hypotenuse
Tan(angle) = Opposite/Adjacent
500
Given the center of dilation in the figure, pre-image ABCDE, and any image A'B'C'D'E', name any segments from the pre-image that will always be parallel to the new dilated image
AB is parallel to A'B'
BC is parallel to B'C'
CD is parallel to C'D'
DE is parallel to D'E'
EA is parallel to E'A'
500
Solve for angle A AND side BC 
Angle A: inverse cos(14/21)
BC: square root of 245
500
Find v, y, and b
v: 13 degrees
y: 95 degrees
b: 7.5
500
Find the midpoint
Midpoint = (-1, 0.5)
500
If the scale factor is 3, how would you write the rule?
(2,3) -> (_,_)
(6,9)