plissss jawab pake cara dengan benar

1

( 1/2 × a × t ) × t
= ( 1/2 × 18 × 24 ) × 26
= ( 1/2 × 432 ) × 26
= 216 × 26
= 5.616 dm3

2

( 1/2 × a × t ) × t
= ( 1/2 × 24 × 10 ) × 30
= ( 1/2 × 240 ) × 30
= 120 × 30
= 3.600 dm3