Respuesta :

amna04352

Answer:

283.5 cm²

Step-by-step explanation:

Base triangle + 3 rectangles + 3 top triangles

(½×8.7×10) + 3(10×6) + 3(½×4×10)

43.5 + 180 + 60

283.5

Hi1315

Answer:

[tex]283.5 {cm}^{2} [/tex]

Step-by-step explanation:

[tex]( \frac{1}{2} \times 8.7 \times 10) + 3(10 \times 6) + 3( \frac{1}{2} \times 4 \times 10) \\ 43.5 + 180 + 60 \\ = 283.5 {cm}^{2} [/tex]