How To Find Scale Factor From Large To Small
+1948 
Decide the scale factor (large to small) of the similar figures.
A) 1:2
B) 2:1
C) 3:1
D) 3:2
Eastward) 5:3
Find the area of the circle, given the square has an expanse of 144 cm^2 (leave your respond in terms of π).
A) 12π cm^2
B) 24π cm^2
C) 36π cm^2
D) 72π cm^two
East) 144π cm^ii
Best Answer
+217 1. The length of the larger rectangle is iv, and the smaller i is 2. The width of the large rectangle is 2, and the smaller ane is 1.
4/2 = 2/1 = 2
The scale factor of the similar figures is two:1(B)
2. The foursquare has area of 144 cm^2, pregnant that it has side length 12. This ways that the diameter of the circle is 12, and so the radius is vi
The formula for the area of a circle is πr^2.
Area = π36, or 36π cm^2 (Eastward)
+217 one. The length of the larger rectangle is 4, and the smaller one is 2. The width of the large rectangle is 2, and the smaller one is 1.
4/ii = 2/ane = 2
The scale factor of the similar figures is 2:1(B)
2. The foursquare has area of 144 cm^two, pregnant that it has side length 12. This ways that the bore of the circumvolve is 12, and so the radius is 6
The formula for the area of a circumvolve is πr^2.
Expanse = π36, or 36π cm^2 (E)
Source: https://web2.0calc.com/questions/determine-the-scale-factor-large-to-small-of-the-similar-figures
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