Question

Quadrilateral ABCD in the figure below represents a scaled-down model of a walkway around a historic site. Quadrilateral EFGH represents the actual walkway. ABCD is similar to EFGH.

What is the total length, in feet, of the actual walkway?

Answer 1

@radar

Answer 2

@experimentX

Answer 3

do you know proportions?

Answer 4

yes

Answer 5

yep ... make the sides of those two proportional ... and calculate length of all sides.

Answer 6

those sides proportional ..

Answer 7

alright

Answer 8

then do i add up the sides?

Answer 9

yes

Answer 10

can u help me on this question i am completely stumped

Answer 11

A cylinder labeled X has a height of 18 inches and a radius of 21 inches. Another cylinder labeled Y has a height of 90 inches and a radius of 105 inches.

The volume of cylinder Y is _______ times the volume of cylinder X.

Answer 12

do you know how to find the volume of cylinder?

Answer 13

no

Answer 14

http://www.mathopenref.com/cylindervolume.html

Answer 15

ok now i get the volumes of both cylinders and divide y by x

Answer 16

yes ..

Answer 17

thanks!

Answer 18

yw

Answer 19

Look at the side AB it is 6 in. Now note that BC and DC which is 3 in. is 1/2 of the AB side. Now this same proportion exist for the sides EF and HG and FG, they too will be 1/2 of EF or 36 feet each.
EF = 72 ft
HG = 36 ft
FG = 36 ft

This just leaves EH to be calculated. On the scale AB=1.5 AD so the same proportion will exist for similar sides HE and EF or 1.5 HE =72 so HE will be 72/1.5 or 48 ft.
So the complete walkway would be 72 + 36 + 36 + 48 = 192 feet