The circumference a circle is 44 cm. Then its area is ______ cm2 [Use π=227]
576
154
182
176
Circumference = 2πr = 44 cm
r = 442π = 7 cm
A = πr2
A = π x 72 = 154 cm2
Find the area of a quadrant of a circle whose circumference is 22 cm.