Question

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Answer 1

Answer:

446 cm^2.

Step-by-step explanation:

Area of rectangle = 30 ☓ 20 = 600 cm^2

Area of quadrant = 1/4 pi r^2

Area of quadrant = 1/4 ☓ 22/7 ☓ 7 ☓ 7

Area of quadrant = 38.5.

Area of 4 quadrants = 4 ☓ 38.5 = 154 cm^2.

Area of shaded portion = area of rectangle - area of quadrant

Area of shaded portion = 600 - 154 =446 cm^2

Answer 2

$\underline{\underline{\red{\huge\mathfrak{ANSWER:}}}}$

446 sq.cm

$\textbf{\pink{EXPLAINATION}}$


CONSIDER ALL THE QUATERS AS A FULL CIRCLE.


=> Area of shaded part = Area of RECTANGLE - Area of circle


=> Area of RECTANGLE= length × BREADTH


=> 30 × 20


=> 600 SQ.Cm


=> Area of circle = π r² (pie = 22/7)


=> 22 / 7 × 7 × 7


=> 22 × 7


=> 154 sq.cm


=> AREA OF SHADED PART=


=> 600 - 154


=> 446 sq.cm


Therefore the area of SHADED figure is 446 sq.cm