The formula for the volume and surface area of a sphere will be given to you in the exam, so you will not need to memorise these. \(\text{The volume of a sphere} ~=~ \frac {4}{3} \times \pi \times ...

2 \end{array}\) In the exam \(\text{Surface area} = 4 \pi r^2\) is given on the formula sheet A hemisphere is half of a sphere. The volume can be found by calculating the volume of the whole ...

By Brenden Bobby Reader Columnist In case you forgot, Pi Day is Friday, March 14 — a celebration of one of the most important numbers in our universe: 3.14159.  Pi is the ratio ...

Larger ice has less surface area so melts ... ice spheres (also known as sphere ice or ice balls) are usually around 2 to 2.5 inches in diameter and contain the volume of around 10 standard ...