C-16-Q204mediumsingle_mcqThe area of a circle of radius 777 cm (use π=227\pi=\dfrac{22}{7}π=722) is —a444444 sq cmb777777 sq cmc154154154 sq cmd sq cmব্যাখ্যাArea =πr2=227×72=22×7=154= \pi r^2 = \dfrac{22}{7}\times 7^2 = 22\times 7 = 154=πr2=722× sq cm.