+0

# pls help me

0
38
1
+257

pls help me with these three questions

cerenetie  Mar 3, 2018

#1
+12117
+3

Find two similar sides and express as a ratio:

WX/RS = 20/24 = 5/6

Let  B  and  H   be the dimensions of   DEF

then  ABC  is   6/10  B     and    6/10  H

Area = 1/2 BH  for a triangle  so the ratios of the areas would be

(1/2  6/10  B  6/10 H )  /    1/2  B H     the 1/2   the B's and the H's   'cancel out'

6/10 * 6/10 = 36/100 = 9/25

Area for a square (or rectangle) is   L x W       Now scale by 6      (6L x 6W ) /  (L x W)  = 36 times bigger !

ElectricPavlov  Mar 3, 2018
Sort:

#1
+12117
+3

Find two similar sides and express as a ratio:

WX/RS = 20/24 = 5/6

Let  B  and  H   be the dimensions of   DEF

then  ABC  is   6/10  B     and    6/10  H

Area = 1/2 BH  for a triangle  so the ratios of the areas would be

(1/2  6/10  B  6/10 H )  /    1/2  B H     the 1/2   the B's and the H's   'cancel out'

6/10 * 6/10 = 36/100 = 9/25

Area for a square (or rectangle) is   L x W       Now scale by 6      (6L x 6W ) /  (L x W)  = 36 times bigger !

ElectricPavlov  Mar 3, 2018

### 11 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