17. The circumference of two circles are 44 meters and 110 metres respectively. What is the difference
between the area of the larger and the smaller circle?
(a) 788.5m2 (b) 608,5m2
(c) 785.5m2
(d) 808.5m2 (e) none of these
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Answer:
807.5m^2
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Answer: General formula of area of circle using circumference = (c² / 4pi)
Circumference of first circle (c1) = 44m
Area of first circle (A1) = [ (44)² / 4 x 3.14 ] = 154.06 m²
Circumference of second circle (c2) = 110m
Area of second circle (A2) = [ (110)² / 4 x 3.14 ] = 962.89 m²
ATQ, Difference between the area of two circles = A2 - A1
= (962.89 - 154.06) m² = 808.83 m²
∴ ANSWER = 808.83 m²
Step-by-step explanation:
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