Answer:
5 triangles maybe?
Step-by-step explanation:
The best estimate of the lateral area of the cube with edges that are 2.1 inches long is 4.2
So is 4 floors / 10 seconds
If you have 60 seconds you can multiple 10 by 6 because 10×6=60
so you also have to multiple 4 by 6
4×6=24
and because it's descending it's 100-24= 76