Question

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

Answer 1

Answer:

$A = 54 \, \sqrt{3} + 18 \, \sqrt{91}$

Step-by-step explanation:

Total area of a right hexagonal pyramid is computed as follows:

$A = \frac{3 \sqrt{3}}{2} \, a^2 + 3 \, a \sqrt{h^2 + \frac{3 \, a^2}{4}}$

where a is the base edge and h is the height.  Replacing with a = 6 and h = 8 we get:

$A = \frac{3 \sqrt{3}}{2} \, 6^2 + 3 \, 6 \, \sqrt{8^2 + \frac{3 \, 6^2}{4}}$

$A = 54 \, \sqrt{3} + 18 \, \sqrt{91}$

Answer 2

Answer:

265.24

Step-by-step explanation:

The sqrt is at the bottom of the picture.