shayleighlawrence
shayleighlawrence shayleighlawrence
  • 12-02-2021
  • Mathematics
contestada

What is the total surface area of the square pyramid in square inches?
Height is 11 in. Base is 7 in. Side Length is 11.5

PLEASE DO THIS QUICKLY

Respuesta :

DWRead
DWRead DWRead
  • 12-02-2021

Answer:

Step-by-step explanation:

I assume that "side length" means the slant height of one of the triangular faces.

area of a triangular face = ½(base)(side length) = ½(7)(11.5) = 40.25 in

lateral area = all four triangles = 161 in²

base area = 7² = 49 in²

total surface area = lateral area + base area = 161+49 = 210 in²

Answer Link
Mathqueen34 Mathqueen34
  • 26-02-2021

Answer:

287

Step-by-step explanation:

Answer Link

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