The volume of the sphere is calculated through the equation, V = 4πr³/3 Substituting, 900 in³ = 4πr³/3 ; r = 5.99 in
Then, solve for the surface area of the sphere by the equation, SA = 4πr² SA = 4π(5.99 in)² = 450.80 in² Thus, in the nearest whole number, SA was calculated to be nearly 451 in².
Sohcahtoa My algebra teacher got us all to remember that word because... Soh - Sin = Opposite / Hypotenus Cah - Cos = Adjacent / Hypotenus Toa - Tan = Opposite / Adjacent Sin, Cos, and Tan are what you can use to find missing triangle sides if you know at least one other angle besides the 90 degree angle.
Multiply 7x6 since when using pemdas, multiplication and division can be inverted, i.e. if multiplication is before division then you multiply and vice versa.