CARILAH LUAS BANGUN YANG DIARSIR! tolong dijawab pake cara yach..

2) L1 = Lpersegi
L2 = Lpersegi panjang
L1 = s × s
= 7 × 7cm
= 49 cm^2
L2 = p ×l
= 30 × 7cm
= 210 cm^2
L1 + L2 = 259 cm^2

3) L1 = L 2 segitiga
L2 = L persegi panjang
L3 = L persegi

L1= 1/2 × a × t × 2
= a × t
= 3 × 4 cm
= 12 cm^2
L2 = 4 × 8 cm
= 32 cm^2
L3 = 8 × 8 cm
= 64 cm^2

L1 + L2 + L3 = 108 cm^2