Jawapan

2016-09-01T21:20:07+08:00
1.Cari isipadu prisma :
=1/2×(EF+AB)(AE)(BC)

=[1/2(4+8)(5)]
=120cm^3

2.Bezakan isipadu pepejal & prisma supaya dapat isipadu piramid .

152 = 120 + isipadu piramid
152 - 120 = isipadu piramid
32cm^3 = isipadu piramid

3.Cari tinggi piramid . Guna formula berikut :

=1/3×panjang×tapak×tinggi
32 = 1/3×4×4×t
32 = 16/3t
32×3/16 = t
6cm = t