Question

Can u please help me to find step by step

Answer 1

Answer:

SORRY BRO NO IDEA

PLEASE MARK ME AS BRAINLIST

Answer 2

Answer:

2100 cm^2

Step-by-step explanation:

Area of the shaded Portion = Area of Rectangle - Area of Semi Circle

Area of Rectangle = Length x Breadth

= 140 x 70

= 9800 $cm^2$

_____________________

Radius of Circle =diameter/2 = 140/2 = 70cm

_________

Area of Semi-Circle = $\frac{1}{2}$(Area of Circle)

$= \frac{1}{2}(\pi r^2)\\\\\\= \frac{1}{2}[\frac{22}{7}* (70)^2]\\\\(taking~value~of~\pi ~as~\frac{22}{7})\\\\\\= \frac{1}{2}[\frac{22}{7}*4900]\\\\\\= \frac{1}{2}[\frac{22}{1}*700]\\\\\\= \frac{1}{2}[22*700]\\\\\\= \frac{1}{2}*15400\\\\\\= \frac{15400}{2}\\\\\\=7700~cm^2$

_____________________

Area of the shaded Portion = Area of Rectangle - Area of Semi Circle

Area of the shaded Portion = 9800 - 7700

Area of the shaded Portion = 2100 $cm^2$

Hope it helps you :)

Pls mark me brainliest