tolong bantu ka,besok di kumpul.

Luas Segitiga = 1/2 × a × t
.
1) 1/2 × 17 × 8
= 68
2) 42/3 × 2
= 28
3) 1/2 × 19 × 6
= 57
4) 105/21 × 2
= 10
5) 330/15 × 2
= 44