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Gelneren [198K]
3 years ago
11

Find the surface area of a triangular pyramid.

Mathematics
1 answer:
rusak2 [61]3 years ago
6 0

Answer:

91in^2

Step-by-step explanation:

SA of base =  7x7 = 49in^2

SA of each triangle = 1/2 x 7 x 3 = 10.5in^2

SA of all 4 triangles = 10.5 x 4 = 42in^2

SA Total = 49 + 42.= 91inch^2

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De moirve's <br> (√3-i ÷ √3+i)^6 = 1
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… = ((√3)² - 2√3 <em>i</em> + <em>i</em> ²) / (3 - <em>i</em> ²)

… = (3 - 2√3 <em>i</em> - 1) / (3 - (-1))

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3 years ago
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