Relax

Respuesta :

Answer:

third option; 70 cm²

Step-by-step explanation:

Rectangle:

5 x 10 = 50

Triangle:

1/2bh

18 - 10 = 8

1/2 5(8)

1/2 40

20

Total area:

50 + 20 = 70 cm²

It’s 70 cm squared.