Jawabanmu

2014-05-23T18:39:24+07:00
A. tinggi segitiga = √10²-5²
= √100-25
= √75 cm
b. volume = luas alas x tinggi
= (1/2 x a x t) x 15
= (1/2 x 10 x √75) x 15
= (5√75 cm) x 15
=75√75 cm³
c. luas = 2 x luas alas + keliling alas x t
= 2 x 75√75 + 30 x 15
= 150√75 + 750
= 900√75 cm²