The circumference of the two circles is 264 m and 308 m respectively. What is the difference between the area of the larger circle and the smaller circle? |
2002 m2 2010 m2 1890 m2 1990 m2 |
2002 m2 |
2\(\Pi \)R1 = 264 = R1 = (264 x 7)/(2 x 22) = R1 = 42 m = 2\(\Pi \)R2 = 308 = R2 = (308 x 7)/(2 x 22) = R2 = 49 m Therefore, required difference = \(\Pi \) x (\( {R2 }^{ 2} \) - \( {R1 }^{ 2} \)) = \(\Pi \) x (R2 x R1)(R2 - R1) = \(\frac{22}{7}\) x 91 x 7 = 2002\( {m }^{2 } \) Therefore, required difference = 2002\( {m }^{2 } \). |