+0  
 
0
27
1
avatar

The radius of circle S is half the radius of circle L. The radius of circle L is 8 millimeters. Which measurement is closest to the area of circle S in square centimeters?

A. 50.24 mm2

B. 25.12 mm2

C. 200.96 mm2

D. 12.56 mm2

 Jul 4, 2022
 #1
avatar+124526 
+1

All circles are similar......the  scale factor of S to L =  1/2

 

Area of S  =    

 

Area of L  * scale factor^2  = 

 

(pi * 8^2) * (1/2)^2  = 

 

64 pi / 4  = 

 

16 pi   ≈

 

50.24 mm^2

 

 

cool cool cool

 Jul 4, 2022

10 Online Users

avatar