Surface Area of Sphere, Hemisphere and Hollow Hemisphere. Maths TNSB Mentoring, Class 10: lessons, tests, tasks.

1.	Surface area of a sphere
2.	Surface area of a hemisphere and hollow hemisphere

1.	Say "true" or "false" Difficulty: easy	2
2.	Find the radius of a sphere Difficulty: easy	3
3.	Find the ratio of surface area of the balloons Difficulty: medium	4
4.	Find the radius and surface area of a hemispherical solid Difficulty: medium	4
5.	Determine C.S.A. and T.S.A. of the shell. Difficulty: hard	6
6.	Five marks exercise problem I Difficulty: hard	5
7.	Evaluate the cost of manufacturing the footballs Difficulty: hard	4
8.	Five marks example problem II Difficulty: hard	5

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Methodical recommendation

Surface Area of Sphere, Hemisphere and Hollow Hemisphere