bellabarfield4286
12.08.2020 •
Mathematics
Find the lateral area of this pyramid
whose base is an equilateral triangle. Its
slant height is 12 in. and the length of each
side of the triangular base is 5
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Ответ:
90 in²
Step-by-step explanation:
The lateral area can be found using the formula ...
LA = (1/2)Ph
where P is the perimeter of the base and h is the slant height. For your dimensions, the lateral area is ...
LA = (1/2)(3×5 in)(12 in) = 90 in²
The lateral area is 90 square inches.
Ответ:
Step-by-step explanation:
Please see the photo for the method