Kak bantu jawab ya please

Luas segitiga 1 = 1/2 ×(a×t)
= 1/2 × (3 m × 4 m)
= 1/2 × 12 m
= 6 m

luas segitiga 2 = 1/2 × (a × t)
= 1/2 ×( 2m × 3 m)
= 1/2 × 6 cm
= 3 m
6 m + 3 m
= 9 m