Question

What is the volume of the pyramid? 8,704 ft3 1,280 ft3 34,816 ft3 4,624 ft3

Answer 1

The volume of a Pyramid is 
$V= \frac{1}{3} Bh$
Big B means you have to multiply the base first so 16*16
to find the hight you can use the Pythagorean theorem 
the length of one of the sides is 16 so we have to divide that by 2 to get one of the legs for the Pythagorean theorem which is 8 and 17 is the hypotenuse.
Pug it in and it will look like this
$8^{2} + b^2 = 17^2$
square them to get
 $64+b^2=289$
subtract 64 from both sides to get 
$b^2=225$
then square root it to get the height
$h=15$
then plug that into your volume formula
$V= \frac{1}{3} 256*15$
Add it up to get a volume of 1,280. Hope this helps Good luck :)

Answer 2

1st you need to find the height then you can find the volume

see attached picture