Answer:
The volume of cone is increasing at a rate 1808.64 cubic cm per second.
Step-by-step explanation:
We are given the following in the question:

Volume of cone =

where r is the radius and h is the height of the cone.
Instant height = 9 cm
Instant radius = 6 cm
Rate of change of volume =

Putting values, we get,

Thus, the volume of cone is increasing at a rate 1808.64 cubic cm per second.
C. reflex, because all of the others are triangles
Answer:
Step-by-step explanation:
5. is hypothenuse because it is across from the right angle
3. and 4. are legs
the answer to this is
Angle ABE= 56
Angle CBD= 56
Angle ABC= 124