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2. The radius of the circle is 21 cm. Finda circumferences of the circleb area of the circle (Pi= 22127)if you answer me i will follow you |
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Answer» Perimeter of a quadrant, P=( 2 π +2)r units =( 7×2 22 +2)×21=( 14 22 +2)×21 P=( 14 22+28 )×21= 14 50 ×21 =75cm. Area of a quadrant, A= 4 πr 2
SQ. units A= 7/ 22 × 4 21×21
=346.5cm |
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