Answer:
Ok so what you should is first find the area for both of the circle
[tex]Area = \pi r^2\\[/tex]
Big circle
you are given the radius which 14mm
[tex]3,14(14)^2 = 615.44 mm^2[/tex]
Small circle
you are given the diameter of the small circle which 14mm
radius = diameter/2
14/2=7mm
[tex]3.14(7)^2 = 153,86mm^2[/tex]
Shaded area means the difference between the 2 areas, in my opinion
so you do 615.44 - 153.86 = 461.58 mm^2
Hope that answers your question
Don't hesitate to comment if you are confused about something :)
Step-by-step explanation:
