+0  
 
0
31
2
avatar+60 

  

oscar.a1551  Apr 12, 2018
Sort: 

2+0 Answers

 #1
avatar+85757 
+3

The scale factor  of the larger triangle to the smaller  =  6/4  =  3/2

 

The  area of the larger triangle  =

 

(Area of smaller triangle )  *  (scale factor)^2  =

 

20    *  (3/2)^2  =

 

20  * 9/4  =

 

(20/4) * 9  =

 

5 * 9   =

 

45 cm^2

 

 

cool cool cool

CPhill  Apr 12, 2018
 #2
avatar+270 
+3

6cm/4cm=1.5

1.5²=2.25

20cm²*2.25=45cm²

qualitystreet  Apr 12, 2018

5 Online Users

We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details