Respuesta :

BHAHHAH20202

Answer:

OOF thats pretty bad

Step-by-step explanation:

Answer:

146.6 yd².

Step-by-step explanation:

The total surface area

= area of rectangular base + area of the 4 side triangles ( 2 pairs of congruent triangles)

= 7*8 + 2 * 1/2 * 6.2 * 7 + 2 * 1/2 * 8 * 5.9

= 56 + 6.2*7 + 8*5.9

= 146.6.

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