find the curved surface area and total surface area of a right circula – InterviewSolution

1.	find the curved surface area and total surface area of a right circular cylinder whose hight and radius of the base are 20 cm and 70 cm
Answer» , r = 70cm h = 20cm____________________________,SURFACE area of a cylinder => 2πrh so, 2× × 20 × 70 => 200 × 44 => 8800cm2and, TOTAL area is 2πr ( r + h ) =>. 2 × ×70×[ 70+ 20 ] =>. 440 [ 90 ] =>. 39600cm2

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