Abcd is a square of side 21cm. ac and bd are two diagonals of the square .2 semicircle are drawn with ad and bc as diameters .find the area
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Heya !!!
Sides of square = 21 cm
Area of square = (Side)² = (21)² = 441 cm².
Diameter of semicircle = Side of square = 21 cm
Radius of semicircle = D/2 = 21/2 cm.
Area of semicircle = 1/2 πR² = 1/2 × 22/7 × 21/2 × 21/2 = 11 × 3 × 21/ 4
=> 693/4
=> 173.25 cm².
Area of remaining portion = Area of square - 2 × Area of semicircle
=> 441 - 2 × 173.25
=> 441 - 346.5
=> 94.5 cm².
HOPE IT WILL HELP YOU...... :-)
Sides of square = 21 cm
Area of square = (Side)² = (21)² = 441 cm².
Diameter of semicircle = Side of square = 21 cm
Radius of semicircle = D/2 = 21/2 cm.
Area of semicircle = 1/2 πR² = 1/2 × 22/7 × 21/2 × 21/2 = 11 × 3 × 21/ 4
=> 693/4
=> 173.25 cm².
Area of remaining portion = Area of square - 2 × Area of semicircle
=> 441 - 2 × 173.25
=> 441 - 346.5
=> 94.5 cm².
HOPE IT WILL HELP YOU...... :-)
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