Question

from a square cardboard of side 21cm ,a circle of maximum area is cut out . find the area of the card board left
Hint.Diameter of circle of maximum area = 21cm.

Answer 1

HEY Buddy.....!! here is ur answer

Given that : Side of square = 21 cm

Side of a square = Diameter of a circle

As we know that : Area of a square = (side)²
and area of a circle = πr²

According to the question : Area of left part of card board = area of square –area of Circle

=> Area of left part = (21)²–22/7×(21/2)²

=> Area = 94.5 cm²

So, the area of left part of card board will be 94.5 cm²

I hope it will be helpful for you...!!

THANK YOU ✌️✌️