Question

A rectangle whose length and breadth are 12 cm and 5 cm respectively is inscribed in a circle. Find the area of the blue coloured region, as shown in the figure 13.19.

Answer 1

HELLO FRIEND,

HERE IS YOUR ANSWER,

By using pythagrous thorem, we will get BD so i.e., root(5^(2)+12^(2)) which is eual to 13cm

here hypotenous is equal to diameter or double of radius

2R = 13
R= 13/2

so Area of blue shaded region is equal to [area of circle-area of rectangle]

[pi×R^(2) - l×b]

on solving this you will get your answer

I HOPE THIS WILL HELP YOU TO UNDERSTAND .....!!!!!!!!

Answer 2

The area of the blue figure
= Area of Circle - Area of rectangle
= 132.7857 - 60
= 72.7857
$= 72.7857{cm}^{2}$