+0  
 
-1
178
1
avatar

The vertices of right triangle ABC are A(−1, 2), B(3, 2), and C(3, 7). The triangle is dilated with a scale factor of 2. Estimate the perimeter of the dilated figure to the nearest whole number.  The perimeter of the dilated figure is about       units?

 Mar 30, 2020
 #1
avatar+626 
+1

When a shape is dilated, all of its side lengths are multiplied by the scale factor.

 

Original:

AB= 4

BC = 5

AC = \(\sqrt{41}\)

 

Dilated:

AB = 8

BC = 10

AC = \(2\sqrt{41}\)

 

Perimeter of dilated: 8 + 10 + \(2\sqrt{41}\) = 30.8062484748656974 = 31 units

 Mar 30, 2020

25 Online Users

avatar
avatar
avatar