diketahui diameter kerucut 14 cm dan s=25 cm hitunglah volume kerucut

diameter kerucut 14 cm dan
s=25 cm

Cari dulu tinggi menggunakan rumus pytagoras
.t= akar ( 25^2-7^2)
= akar( 625 -49)
= akar 576
= 24

Volume kerucut
= pixrxr t
= 22/7 × 7x7x24
=22×7×24
=3.696 cm^3

t = √s²–r²
= √25²–7²
= √625–49
= √576 = 24 cm
Volume kerucut
= ⅓πr²t
= ⅓ × 22/7 × 7 × 7 × 24
= 1.232 cm³