tolong ya kak pr mtk susah pakai cara,cuman di suruh tentukan volume prisma tegak segitiga

1.
a. La × T 
= ( a × t ÷ 2 ) × T
= ( 28 × 21 ÷ 2 ) × 32
= 9.408 cm3

b. La × T
= ( a × t ÷ 2 ) × T
= ( 48 × 25 ÷ 2 ) × 50
= 30.000 cm3

c. La × T
= ( a × t ÷ 2 ) × T 
= ( 28 × 32 ÷ 2 ) × 46
= 20.608 cm3

d. La × T
= ( a × t ÷ 2 ) × T
= ( 24 × 32 ÷ 2 ) × 35
= 13.440 cm3

e. La × T
= ( a × t ÷ 2 ) × T
= (26 × 22 : 2) × 54
= 19.224 cm3

f. La × T
= ( a × t ÷ 2 ) × T
= (20 ×10 : 2) × 36
= 3.600 cm3

Semoga Membantu!