ΔABC is similar to ΔFED. Answer the questions to find the length of DF . 1. Which side in ΔFED does AB in ΔABC correspond to?

2. Which side in ΔFED does CB in ΔABC correspond to?

4. What scale factor was used in the dilation of ΔABC to ΔFED? Explain how you found the scale factor.

5. What is the length of side DE? Show how you found this length.

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)

14.29%

step-by-step explanation:

the answer is  

a.

4,624π mm2

step-by-step explanation: