Answers

2015-06-09T15:44:50+05:30
(C)44 is the answer 
 given area of circle=154
       ⇒area of circle=πr²
                             =22/7 ×7×7.
                             =154 
so radius of the circle=7cm
 perimeter of circle=2πr
                           =2 ×22/7×7
                           =44cm
⇒perimeter of the circle=44 cm.
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2015-06-09T15:47:40+05:30
Area of circle = Πr2. (Π = pie) 154 = 22\7 × r2. (154 ×7) \22 = r2. 49 = r2. √49 = r. 7cm = r. Perimeter of circle = circumference of circle. Therefore, circumference of circle = 2Πr. Circumference of circle = 2 × 22\7 × 7. Circumference of circle = 44cm..... So, the answer is option (c) 44cm...
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