Respuesta :

Answer:760ft2

Step-by-step explanation:

Area of first triangle = 1/2bh = 1/2*8*15=60ft2

Area of second triangle = 60ft2

Area of bottom rectangle =20*15=300ft2

Area of top rectangle = 17*20=340 ft2

Total surface area =60+60+300+340

=760ft2

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