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3 years ago

Find the total area the regular pyramid. T. A. =

Mathematics

2 answers:

drek231 [11]3 years ago

8 0

Answer:

$T.A = 16\sqrt{3}$

lorasvet [3.4K]3 years ago

5 0

Answer:

T.A. = 16√3 units²

Step-by-step explanation:

∵ The total area = the area of the four faces

∵ The four faces are equilateral triangles with side length 4

∵ Area of the equilateral Δ = 1/4 s² √3

∴ T.A. = 4 × 1/4 × 4² × √3 = 16√3 units²

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