Question

3. From each corner of a rectangular paper (30 cm x 20 cm) a quadrant of a circle of radius 7 cm is cut. Find the area of the remaining paper i.e., shaded portion..

I will mark you the Brainliest​

Answer 1

Step-by-step explanation:

30cm ×20cm

600cm

7×7×7×7

=2,401

mark me as brainlist i need pls

Answer 2

$Area \: of \: Rectangular \: paper \\ = 30×20 \\ = 600 \: {cm}^{2}$

$Area \: of \: 1 \: Quadrant = \frac{1}{4}\pi( {7)}^{2}$

$Area \: of \: 4 \: Quadrant \\ = 4 \times \frac{1}{4} \times \pi \: ( {7)}^{2}$

$Area \: of \: 4 \: Quadrant = \frac{22}{7} \times 7 \times 7$

$= 15 \: {cm}^{2}$

$Area \: of \: Shaded \: Region \\ = 600 - 154 \\ = 446 \: {cm}^{2}$