Answer:
4, 6/9 sry if wrong
Step-by-step explanation:
to figure out the area you have to use the formula 1/2 base times height.
Answer:

Step-by-step explanation:
We are given that

Side of base=4 cm
l=w=4 cm
Height,h=12 cm
We have to find the rate at which the water level rising when the water level is 4 cm.
Volume of pyramid=


Substitute the value

Differentiate w.r.t t

Substitute the values

