Question

a circular lid of radius 14 centimetre has four circular holes of diameter 1.4 cm find the area of the lid

Answer 1

hope you understood..............

Answer 2

$Total area of the lid = 616 cm^{2} (since the area of the circle is \pi r^{2} ) Area of 4 holes = 4 * \pi r^{2} = 4 * 22/7 * 0.7 * 0.7 = 6.16 cm^{2} Remaining area = (616 - 6.16) cm^{2} = 609.84 cm^{2}$