canonmille2
29.01.2021 •
Mathematics
Find the value of , need help on this!!
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Ответ:
Formula for area of a circle is A = PI x r^2
Area of outside circle = 3.14 x 5^2 = 3.14 x 25 = 78.5
Area of inner circle = 3.14 x 2.5^2 = 3.14 x 6.25 = 19.625
Area of shaded region = outside circle - inner circle = 78.5 - 19.625 = 58.875 = 59 m