If a series of rigid transformations maps ∠F onto ∠C where ∠F is congruent to ∠C, then which of the following statements is true? a. ΔABC ~ ΔFDE because of the definition of similarity in terms of similarity transformations
b. ΔABC ~ ΔFDE because of the AA similarity postulate
c. segment BC ~ segment EF because of the definition of similarity in terms of similarity transformations
d. segment BC ~ segment EF because corresponding parts of similar triangles are similar

that is the sum

step-by-step explanation:

there are no other answers without knowing the variables values

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation:

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

80 the answer is 80

step-by-step explanation: