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394
3
avatar+214 

How the heck.

 Jun 28, 2018

Best Answer 

 #3
avatar+8778 
+2

(XY / PQ)2   =   area of UVWXY / area of LMNPQ

 

(XY / 10)2   =   198 / 88

 

(XY / 10)2   =   9 / 4

 

XY / 10   =   √[ 9 / 4 ]

 

XY / 10   =   3 / 2

 

XY   =   10 * 3 / 2

 

XY   =   30 / 2

 

XY   =   15

 Jun 29, 2018
 #1
avatar
0

198/88=2.25 

so 10*2.25=22.5

 Jun 29, 2018
 #2
avatar+169 
0

The concept used is Dialation.

 Jun 29, 2018
 #3
avatar+8778 
+2
Best Answer

(XY / PQ)2   =   area of UVWXY / area of LMNPQ

 

(XY / 10)2   =   198 / 88

 

(XY / 10)2   =   9 / 4

 

XY / 10   =   √[ 9 / 4 ]

 

XY / 10   =   3 / 2

 

XY   =   10 * 3 / 2

 

XY   =   30 / 2

 

XY   =   15

hectictar Jun 29, 2018

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