if the dia meter of two concentric circle is 10m & 19 m what its circumference
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Step-by-step explanation:
19. if the sum of the areas of two circles with radii r1 and r2 is equal to the area of a circle of ... then the diameter of the wheel is (a) 35 cm (b) 70 cm (c) 1.4 m (d) 70 m if the
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Step-by-step explanation:
circumference of first circle is
22/7*10=31.42
circumference of second circle is
22/7*19=59.71
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