Activity - 4
(1) In the given awareness advertisement of the
Government of Nagaland the radius of the circle is
14m.
Find the
(a) Diameter
(b) Area and
(c) Circumference of the circle.
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Answer:
Step-by-step explanation:
As we know, the area of circle is equal to pi times square of its radius, i.e. π x r2. To find the area of circle we have to know the radius or diameter of the circle. For example, if the radius of circle is 7cm, then its area will be: Area of circle with 7 cm radius = πr2 = π(7)2 = 22/7 x 7 x 7 = 22 x 7 = 154 sq.cm.
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