# 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.

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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 =