A rocket in the shape of a cone is attached to a cylinder with the same base radius . the cone has a slant height of 15 m. the cylinder has a base diameter of 12 m and a height of 42 m . find the total surface area of the rocket .
tolong buat Cara nya yaa
thankyouu
tolong buat Cara nya yaa
thankyouu
The area of cone = phi.r.(slant) height = 3.14 x 6 x 15 = 286.6
the area of cylinder = 2 phi r h + ph r2 = 2 x 3.14 x 42 + 3.14 x 6 x 6 = 1695.56
the total surface area is .... 286.6 + 1695.56 = 1982.16