Question
If the area of a circle is 154 cm², then the
circumference of the circle is:Solution
Area of a circle = πr2 => 154 = 22/7 × r 2 => r 2 = 49 => r = 7 cm Therefore the circumference of the circle = 2πr = 2 × 22/7 × 7 = 44 cm
More Mensuration Questions
- Which letter-cluster will replace the question mark (?) in the following series?
RGV, UME, ?, AYW, DEF - Which letter and number cluster will replace the question mark (?) to complete the given series?
LT6, KU12, IW24, FZ48, ____ - Select the number from among the given options that can replace the question mark (?) in the following series.
17, 18, 22, 31, 47, ___ - Which letter-cluster will replace the question mark (?) in the following series?
NPQR, OORQ, PNSP, ____, RLUN - A series is given with one term missing. Choose the correct alternatives from the given ones that will complete the series.
57, 59, 56, 61, 54, ___
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