A = 2 π r ( r + h ) A = 2 π ⋅ 30 ⋅ ( 30 + 19 ) A = 60 π ⋅ 49 A = 2940 π ft 2
S A = 2 ( p i ) r h + 2 ( p i ) r 2
S A = 2 ( p i ) ( 30 ) ( 19 ) + 2 ( p i ) ( 3 0 2 )
S A = 2 ( p i ) ( 30 ) ( 19 ) + 2 ( p i ) ( 900 )
S A = 3581.3 + 5654.7
S A = 9236
9236 square feet
The exact surface area of the cylinder with a radius of 30 ft and a height of 19 ft is 2940 π square feet. This is calculated using the formula for the surface area of a cylinder. By substituting the given values into the formula, we obtain the result.
;
Jawaban:Asia Tenggara seperti,Kalimantan,Semenanjung Malaysia, sebagai pusat asalnya