Surface area of a sphere (Self Evaluation) : Class 10 : Mathematics : C-DAC Online Lab

Surface area of a sphere

	1)	In a Sphere \| Sphere Radius = 85 \| Calculate Sphere Surface Area = ??
		104358 77134 90746 81671

	2)	In a Sphere \| Sphere Radius = 49 \| Calculate Sphere Surface Area = ??
		31664.39 21109.59 30156.56 28648.73

	3)	In a Sphere \| Sphere Radius = 19 \| Calculate Sphere Surface Area = ??
		7254.66 2493.79 3173.91 None of these

	4)	What is the surface area of a sphere of radius 6 inches?
		36π in2 108π in2 144π in2 288π in2

	5)	What is the surface area of a sphere of diameter 42 cm? Use (22/7) as an approximation for π
		1,848 cm2 5,544 cm2 22,176 cm2 38,808 cm2

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