GOSPGO
Segitiga ABC segitiga siku2 coba kamu gambar titik A , B dan C pada koordinat cartesius
V = 1/3 luas alas x tinggi t = 15
luas alas = luas segitiga siku2 = 1/2 .alas x tinggi segitiga = 1/2 . AB . AC A(3,1) B(9,3) C(3,6) AB = x2 - x1 = 9 - 3 AC = y2 - y1 = 6-1 L = 1/2 (9-3) ( 6-1) = 1/2.6.5 = 15
V = 1/3 luas alas x tinggi
t = 15
luas alas = luas segitiga siku2 = 1/2 .alas x tinggi segitiga = 1/2 . AB . AC
A(3,1) B(9,3) C(3,6)
AB = x2 - x1 = 9 - 3
AC = y2 - y1 = 6-1
L = 1/2 (9-3) ( 6-1) = 1/2.6.5 = 15
V = 1/3 x 15 x 15 = 75 jawaban A