00:01
In this question we have been given that a regular square pyramid has an altitude of 15 meters and volume is given to be 125 meter cube.
00:12
First we need to find out what is the base edge of the pyramid.
00:19
So, let us try to draw this pyramid here.
00:22
Since it is a square so the base is going to be a square only and then we try to draw this somewhat like this.
00:32
Okay, so this is how our pyramid is going to look like.
00:40
Height is given to be 15 meter and volume is given to be 125.
00:48
So, base edge will be given by since we know that volume is 1 over 3 times base times height.
00:59
Volume is already given 1 over 3 times base.
01:03
Base we know is v and height is already given as 15.
01:09
So, v comes out to be 375 over 15 which is equals to 25.
01:16
So, this is the base.
01:19
Next what we have to do? we have to find slant height of the pyramid...