tlg di jawab ya ka :)

(Tinggi)segitiga = (lebar)ppjg

Luas persegi pjg = p x l
= 8 x 3
= 24 cm^2

Lsegitiga = a x t /2
= 8 x 3/2
= 4 x 3
= 12 cm^2

Total = 24 + 12 = 36 cm^2 (b.)

Smgmbntu

t²=5²-4²
t²=9
t=3

=luas segitiga+luas persegi panjang
=[(1/2)*alas*tinggi]+p*l
=[(1/2)*8*3]+8*3
=12+24
=36cm²