Question

Given polygon BRAIN~POWEQ what is the perimeter of BRAIN?

A. 23.50
B. 58.75
C. 35.25
D. 57.25

Answer 1

http://assets.openstudy.com/updates/attachments/5063566ce4b0da5168bdba68-alainabbyboo22-1348687489911-similarity2.gif

@jim_thompson5910

Answer 2

first you need to know the value of y

Answer 3

how do you find this

Answer 4

using slope intercept right

Answer 5

no you just set up a proportion

Answer 6

ok

Answer 7

(y+5)/4.5 = 7.5/3

y = ??

Answer 8

I got y=6.25

Answer 9

me too

Answer 10

so if y = 6.25, then y+5 = 6.25+5 = 11.25

Answer 11

so the length of BR goes from y+5 to 11.25

Answer 12

you now have all the info you need to find the perimeter of BRAIN

Answer 13

so what answer would it Be?

Answer 14

you tell me

Answer 15

what did you get

Answer 16

you just add up all the sides in the figure

Answer 17

I got A.

Answer 18

the five sides are: 10,11.25,7.5,12.5,17.5

Answer 19

ohh 58.75

Answer 20

yep

Answer 21

I got one more

Answer 22

find the value of Y in the similar figures (round to the nearest tenth)

A. 12
B. 6
C. 13.3
D. 7.3

One sec gota draw it quick

Answer 23

y/20 = 4/6

y = ??

Answer 24

I got y=40/3

Answer 25

then simplify that and get 13.3

Answer 26

you nailed it

Answer 27

yay!!! thanks for working with me tonight!

Answer 28

you're welcome