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Ray Of Light [21]
3 years ago
13

Someone help please - area of circles!

Mathematics
1 answer:
Reika [66]3 years ago
7 0
R=d/2
R=40/2
R=20
A=πr^2
A=π20^2
A=π400
A=1256.637061
Area of triangle=(b*h) /2
A=(40*20)/2
A=800/2
A=400
Area of circle-area of triangle=area of shaded region
1256.637061-400=856.637061
Hope this helps!
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