Answer:
The answer is 126
Step-by-step explanation: You add 495+ 126 and that will get you too 621.
Answer:

Step-by-step explanation:
Diameter labeled twelve centimetres D =12cm => 0.12
height labeled thirty-two centimetres H= 32cm => 0.32
Generally the vertical cross section of this cone is a triangle
Mathematically solving
Area of vertical cross section through the center of the base of the cone is given by 

Therefore



-7.8
The rest can be solved as rational. Negative numbers are not rational.