Question

2) side of a square is 3x10 ​

Answer 1

Answer:

area = side * side

area=3*3*10^8

therefore area=9*10^8m^2

hence option c is correct

Answer 2

$\bf\huge\pink{Answer}$

$\bf\large\text{We know that : }$

$\bf\large\text \red{Area of square = side × side =S²}$

$\bf\large\text\purple{Given that : }$

$\bf\large\text\blue{Side of square \: = \: 3×10⁴}$

$\bf\huge\orange{Therefore}$

$\bf\large\text \green{Area of square = side × side =S²}$

$\bf\large\text{Area of square =(3×10⁴)²}$

$\bf\large\text \orange{Area of square =(9×10⁸) m²}$

$\bf\huge\gray{Hence}$

$\large \text{Option c) is correct option}$