Jawapan

2016-10-09T16:42:35+08:00
2×22/7×92.4 ...........
(x/360 × 22/7 × 7× 7) - (x/360 × 22/7 × 14×14) = 92.4 cm
616x/360 - 154x/360 = 92.4cm
462x/360 = 92.4
x = (92.4 × 360 ) ÷ 462
You will get the answer. Hope you can understand (