Question

A square of side 80 cm ,had patterns in circles of diameter 15cm laid out each touching the other .Find the area of the square not covered by the circles. plz give answer in fraction not in fraction​

Answer 1

Answer:

area of square = ( side) square

so

80×80=6400 cm

diameter =15

and radius = 15/2 = 7.5cm

pattern in circle = 22/7 (we know that)

therefore,

remaning area = 6400-22/7 ×7.5 ×7.5

= 6223.21 cm