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CaHeK987 [17]
3 years ago
13

Help?? This question is gonna be similar to a test question tommorow i do not understand

Mathematics
1 answer:
tigry1 [53]3 years ago
8 0
You should calculate( the area of a circle of radius 15 cm ) minus the area of the circle of radius (15 cm - width of the frame). I am not able to read the number, sorry. 
That is the surface area of the frame.

Then, if area of circle radius is 100%, the % of face of the clock is:

(100xareaCircle(15cm-widthframe))/areaCircle15cm


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