Mathematics: The length of the base of a square pyramid is 9 inches the slant height is 12 inches what is the surface area of the pyramid

The length of the base of a square pyramid is 9

Ответ:

Kyliehayden05

15.03.2022

Mathematics

The surface area is $297\ in^{2}$

Step-by-step explanation:

we know that

The surface area of the square pyramid is equal to the area of the square base plus the area of its four lateral triangular faces

$SA=b^{2}+4[\frac{1}{2}(b)(l)]$

where

$b=9\ in$

$l=12\ in$ -----> the slant height

substitute the values

$SA=9^{2}+4[\frac{1}{2}(9)(12)]$

$SA=297\ in^{2}$

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Ответ:

Blaked

08.03.2020

Mathematics

We know that the coordinates of D before translation : (-6, 6) and the coordinates of D' after translation : (1, -1).

We have to try to find the role that goes well with the translation.

$The \ closest \ answer \ is \ (x, y)....(x - 7, y + 7)$

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The length of the base of a square pyramid is 9 inches the slant height is 12 inches what is the surface area of the pyramid

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