Question

Carl has circular window with with and of approximately 78.5dm2.what is the radius of the window?

Answer 1

Answer:

5 dm

Step-by-step explanation:

Area of circular window = πr^2

=> 78.5 = πr^2

=> r^2 = 78.5/π

=> r^2 = 78.5/3.14

=> r^2 = 25

=> r = √25 = 5

Hence radius of the window is 5 dm