Respuesta :

Given the 45-90-45 triangle property:
Hyopentuse = 9√2, therefore:
Base = 9  + 9  = 18 m
Height = 9 m

Area of the top triangle  = 1/2 (9) (18)  = 81 m²
Area of the bottom triangle = 1/2(6)(18) = 54 m²
Tota area  = 81 + 54 = 135 m²

Answer: 135 m²

Answer:

135m

Step-by-step explanation:

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