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larisa86 [58]
3 years ago
9

Find the surface area of the figure. Round to the nearest hundredth when necessary.

Mathematics
1 answer:
Ainat [17]3 years ago
8 0

Answer:

Solution given;

slant height[l]=32km

side of equilateral triangle (a)=14km

now

total surface area of triangular pyramid =

area of base triangle +3 area of traingular faces

=√3/4 a²+3×½×{b×l}

=√3/4 14²+3/2×{14×32}

=756.87=757 km² is a required surface area.

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