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emmalybrown
22.07.2019 •
Mathematics
Jess is building a skateboarding ramp in the shape of a triangular prism with the dimensions shown. if jess wants to cover all faces of the ramp with plywood, how much plywood will he need? 96 square feet 144 square feet 156 square feet 168 square feet
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Ответ:
surface area of the triangular prism=2*area of the base+perimeter of base*height
area of the base=b*h/2
b=3 ft
h=4 ft
area of the base=3*4/2> 6 ft²
perimeter of the base=3+4+5> 12 ft
height of the prism=12 ft
surface area of the triangular prism=2*6+12*12> 12+144---> 156 ft²
the answer is
156 ft²
Ответ:
If
then ![h(4)=3](/tpl/images/2188/9329/8037b.png)