A solid right circular cone of radius 3cm & slant height 5cm is cut by a plane through A into two exact pieces. Find the total surface area of a single piece.
Answers
Answered by
8
Given:
right circular cone
radius : 3 cm
slant height : 5 cm
Surface area of a cone = π r l + π r²
S.A. = 3.14 * 3cm * 5cm + 3.14 * (3cm)²
S.A. = 47.1 cm² + 28.26 cm²
S.A. = 75.36 cm²
75.36 cm² ÷ 2 = 37.68 cm² is the surface area of a single piece when the cone is cut into two exact pieces.
right circular cone
radius : 3 cm
slant height : 5 cm
Surface area of a cone = π r l + π r²
S.A. = 3.14 * 3cm * 5cm + 3.14 * (3cm)²
S.A. = 47.1 cm² + 28.26 cm²
S.A. = 75.36 cm²
75.36 cm² ÷ 2 = 37.68 cm² is the surface area of a single piece when the cone is cut into two exact pieces.
Answered by
2
Ans
A solid cone is divided into two parts means we get one triangular side
Attachments:
Similar questions