Kak tolong dikerjakan yaa dengan cara

1. L1 = 1/2 x a x t
= 1/2 x 3 cm x 3 cm
= 4,5 cm²
L2 = 1/2 x a x t
= 1/2 x 10 cm x 10 cm
= 50 cm²
L3 = p x l
= 10 cm x 3 cm
= 30 cm²
L4 = L2
L. seluruhnya=4,5cm²+50cm²+30cm²+50cm²
= 134,5 cm²

2. L1 = s x s
= 7 cm x 7 cm
= 49 cm²
L2 = p x l
= 30 cm x 7 cm
= 210 cm²
L1 + L2 = 49 cm² + 210 cm²
= 259 cm²

3. L1 = 1/2 x ( a + b ) x t
= 1/2 x ( 14 cm + 8 cm ) x 4 cm
= 1/2 x 22 cm x 4 cm
= 44 cm²
L2 = s x s
= 8 cm x 8 cm
= 64 cm²
L1 + L2 = 44 cm² + 64 cm²
= 108 cm²

4. L1 = a x t
= 15 cm x 8 cm
= 120 cm²
L2 = p x l
= 9 cm x 6 cm
= 54 cm²
L1 + L2 = 120 cm² + 54 cm²
= 174 cm²

5. kurang jelas soalnya