TOLONG YAA,BESOK DI KUMPUL. TERIMAKASIHH..

1.
[tex](50cm \times 23cm) + (20cm \times 20cm) \\ = 1190 {cm}^{2} [/tex]
2.
[tex](42cm \times 10cm) + (28cm \times 40cm) \\ = 1540 {cm}^{2} [/tex]
3.
[tex](8cm \times 3cm) + (11cm \times 2cm) + \\ (5cm \times 4cm) = 66 {cm}^{2} [/tex]
4.
[tex](10cm \times 15cm) + (5cm \times 10cm) \\ = 200 {cm}^{2} [/tex]