Question

find the area of shaded portion

Answer 1

I think given figure is a rectangle and the upper portion is semicircle.


(Next time kindly upload the picture taken from your book)

Your answer :-

Area of the entire rectangle = Length × Breadth

Given length = 10cm
Breadth = 14cm

So area of entire figure = 10 × 14 = 140cm²


Now we know that area of circle = πr²

Since semicircle is half of a circle, its area = πr²/2

Now if you closely see, the diameter of the semicircle is 14m

So radius = 14/2 = 7cm

So area = (πr²)÷2

=> area = (22/7 × 7²) ÷ 2

=> area = (22/7 × 49) ÷ 2

=> area = 154 ÷ 2

=> area = 77 cm²


Now area of shaded portion = entire area - area of semicircle

=> 140 - 77

=> 63cm²


So your answer is 63cm²

Hope it helps dear friend ☺️✌️

Answer 2

$\huge \bold {\mathfrak {hey}}$

✔️ it is a rectangle

To find area of shaded portion

First find area of rectangle than circle

Now,

Area of rectangle = length × breadth

Length = 10
Breadth = 14

➡️ 10 × 14 = 140 cm

Area of semicircle
$\frac{ {\pi \: r}^{2} }{2}$
Radius is half = 14/2 = 7

Now,

22/7 × 7 × 7 / 2

➡️ 154 ÷ 2

➡️ 77

Now area of shaded portion = area of rectangle - area of semicircle

=> 140 - 77

➡️ 63 cm sq

Therefore,

The area of shaded portion = 63 cm sq

Hope it will help you

BE BRAINLY