Question

Jari jari alas kerucut 20cm. jika panjang garis pelukis 25 cm maka volume nya

Answer 1

V kerucut = 1/3 πr²t
= 1/3 3,14 x 20 x 20 x √s²-r²
= 1/3 3,14 x 400 x √25²-20²
= 1/3 1256 x √625-400
= 1/3 1256 x √225
= 1/3 1256 x 15
= 1256 x 5
= 6280 cm³

Answer 2

Diket=
r=20 cm
garis pelukis = 25 cm
tinggi= 25^2-20^2= 625-400=√225=15 cm
.
V kerucut= 1/3πr^2t
1/3 x 3,14 x 20 x 20 x 15= 6280 cm^3
maaf klo nghitungny salah