a wooden article was made by scooping out a hemisphere from one face of a cubical wooden block.if each edge of cube is 10 cm and diameter of base of hemisphere is 7 cm. then find the volume of wooden article.
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Hello dearie !
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volume of cube = l³
= 10 x 10 x 10
= 1000 cm³
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volume of wooden block = volume of cube - volume of hemisphere
= 1000-2/3 π r³
= 1000-2/3 x 22 / 7 x 7 x 7 x 7
= 1000-44/3 x 49
= 1000-718 . 67 cm³
= 281 . 34 cm³
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____________________________________________________________
volume of cube = l³
= 10 x 10 x 10
= 1000 cm³
____________________________________________________________
volume of wooden block = volume of cube - volume of hemisphere
= 1000-2/3 π r³
= 1000-2/3 x 22 / 7 x 7 x 7 x 7
= 1000-44/3 x 49
= 1000-718 . 67 cm³
= 281 . 34 cm³
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