A circular plate with diameter 4 m is carved by a circular hole with 2 m diameter. What is the area of the plate now?
Area of plate =__________
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the right now answer is area of plate =6cm
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Step-by-step explanation:
3π m2
Radius of outer circle = 4242 = 2 m
Radius of inner circle = 2222 = 1 m
Area of a circle = πr2
Area of plate = area of outer circle - area of inner circle = π(2)2 - π(1)2 = 4π - π = 3π m2
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