Tolong bantu besok harus dikumpull​

Jawaban:

1..L= 1/2 ×d1×d2

=1/2×20×16

=160 cm^2

2. L =alas × t

= 20×8

=160 cm^2

3.L = jumlah sisisejajar ×t/ 2

=(18+22) ×12/ 2

=120 cm ^2