This was a really tough week in math 10. We learned so much about measurements, SA, V, hemispheres and other shapes. What i had troubles with were learning how to find volume and surface area of a hemisphere. It was challenging at first, but i then started coming in for extra help with it and i can say that i am now very familiar with find both surface area and volume of a hemisphere. to find the volume you must do 2/3 multiplied by /pi r cubed. The surface area is 1/2( 4/pi r squared). now since it is a hemisphere there is a circular surface at the top shaped as a circle, the surface area for that is just /pir squared.