tolongggggg no.58plissss

luas layang-layang = 1 / 2 × diagonal 1 × diagonal 2
= 1 / 2 ×( 4 + 7)×( 3+ 3)
= 1 / 2× 11× 6 = 33 cm

luas persegi panjang = panjang× lebar

= 8 dikali 5 = 40 cm

luas gabungan = 33 + 40 = 73 cm

Semoga dapat membantu

L = L layang-layang + L persegi panjang
L = (1/2 × d1 × d2) + (p × l)
L = (1/2 × (3+3) × (4+7)) + (8 × 5)
L = (1/2 × 6 × 11) + 40
L = 33 + 40
L = 73 cm^2 (B)