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​

Answer 1

Answer:

Hello mate,

Step-by-step explanation:

Answer : 80² - ( π × 7.5² ) =

6400 - 23.54 =

6376 . 45 sq cm ²

Answer 2

Step-by-step explanation:

Area of square =side×side.

so,

80x80=6400cm

Diameter =15

and , radius =15/2=7.5cm

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

therefore,

remaining area = 6400 -22/7x7.5x7.5cm

6223.21cm.