What is the surface area of this triangular prism rounded to the nearest tenth 3.6 km 8.5 km 7.7 km 1.8 km
1 answer:
The picture in the attached figure
we know that
[surface area]=2*[area of the base]+[perimeter of the base]*height
area of the base=3.6*7.7/2----> 13.86 Km²
perimeter of the base=3.6+7.7+8.5-----> 19.8 Km
height=1.8 Km
[surface area]=2*[13.86]+[19.8]*1.8-------> 63.36 Km²-----> 63.4 Km²
the answer is
63.4 Km²
we know that
[surface area]=2*[area of the base]+[perimeter of the base]*height
area of the base=3.6*7.7/2----> 13.86 Km²
perimeter of the base=3.6+7.7+8.5-----> 19.8 Km
height=1.8 Km
[surface area]=2*[13.86]+[19.8]*1.8-------> 63.36 Km²-----> 63.4 Km²
the answer is
63.4 Km²
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