Question

The radius of a coin is 2 cm. Find the area
occupied by the flat surface of the coin
when it is placed on a table.
​

Answer 1

$heya \\ \\ area \: occupied \: by \: coin \: placed \: on \: table \: \\ is \: \pi \times (2) {}^{2} \\ \\ = 3.14 \times 4 \\ \\ = 12.56cm {}^{2}$

Answer 2

since shape of coin is circular at its base. so its area= π (radius.radius) i.e. 3.14×2×2/100= 0.1256m2