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In the given figure, from a cuboidal solid metalic block, of dimensions 15 cm ⨯ 10 cm ⨯ 5 cm, a cylindrical hole of diameter 7 cm is drilled out. Find the surface area of the remaining block. (Take π=227). [CBSE 2015] |
Answer» In the given figure, from a cuboidal solid metalic block, of dimensions 15 cm ⨯ 10 cm ⨯ 5 cm, a cylindrical hole of diameter 7 cm is drilled out. Find the surface area of the remaining block. (Take π=227). [CBSE 2015]
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