tolong di jawab no 4-6.....

4.)

1/2 × (36 + 15) × 22 = 561 cm2
36 cm × 18 cm. = 648 cm2
561 cm2 + 648 cm2 = 1209 cm2

5.)

1/2 × 30 × 18 × 2 = 540 cm2
30 cm × 18 cm = 540 cm2
540 cm2 + 540 cm2 = 1080 cm2

6.)

33 cm × 28 cm = 924 cm2
1/2 × (33+66) × 21 = 1039.5 cm2
924 cm2 + 1039.5 cm2 = 1963.5cm2