Question

OR
and the area of the shaded region ( use it =
22
14 cm--
14 cm
7 cm
3.5 cm
3.5 cm
X7/cm​

Answer 1

Answer:

area of shaded region=area of (square+2quadrnts+semicircle)- area of circle

area of square=14×14 or (a×a) or (a²)

196cm²

area of two quadrant with radius 3.5 cm

2×1/4 ×22/7×3.5 ×3.5

1/2×22/7 ×12.25

1/2 ×22×1.75

11×1.75

19.25cm²

area of semi circle (with radius=7cm)

1/2 πr²

1/2 ×22/7 ×7 ×7

77cm²

area of circle (πr²)

with diameter=7cm ,so radius =3.5 or 7/2

22/7 ×7/2 ×7/2

77/2

38.5cm²

so (196+19.25+77)-38.5

253.75cm²

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