Landslide tunnel Work...

I’m at the Engr Zillur Rahman Khan of Civil Engineer at the Dhaka Polytechnic Institute and today we’re going to measure the slope of some cases namely this Tunnel here and this even larger staircase you may think that this larger staircase is steeper than this staircase because well this staircase is
harder to climb but let’s actually find out we’re going to find out by measuring how far the staircase goes up by how wide each step is when I measure this step I see that it goes over 20 inches and it rises about 8 and a quarter inches, on the other hand.