A cone is divided into two parts by drawing a plane through midpoint of its axis, parallel to its base . The ratio of volumes of two parts is : (A) 2:3 (B) 1:2 (C) 1:3 (D) 1:7
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Answer is D
area of cone is (1/3) π r^2 h
use symmetry of triangles property
area of cone is (1/3) π r^2 h
use symmetry of triangles property
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