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 se

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)