Answer:
A. Applying a month before the deadline
Https://youtu.be/wX-xs9VJ-BI
https://youtu.be/ap0BiR3NF6w
These helped me. I hope they help you.
We can define the base of each equilateral section as

since this is the distance from the x-axis to the function

.
An equilateral triangle's area can have a function defined solely by the base. Since all sides are equal, the height of the triangle can be found via pythagorean theorem as:

But we know that the base

is a function of x. We also can then state that Area

is also a function of x. Specifically:

.
Then if we integrate the area function A(x) from 0 to pi, we get the total volume:
The answer is B. Rene Descartes
Answer:
The energy in seismic waves that cause the ground to shake Heat energy associated with friction on the fault slip surface Gravitational potential energy (the energy stored when lifting something off the ground, for example) may change as a result of the earthquake Elastic potential energy, as in the recoil energy of a stretched spring.
Explanation: