This week in math we learnt how to calculate the surface area and the volume of a sphere. I never learnt how to do this before and that all cones, cylinders, and spheres. All of these shapes have something in common however all of these shapes must have the same dimensions
3 cones= 1 cylinder
2 cones= 1 sphere
1 cone + 1 sphere = 1 cylinder
3 hemispheres = 1 cylinder
1 cone = 1 hemisphere
This week in math we learnt how to round measurements to the nearest (tenths, thousands… so on). Using this method just makes doing all the equations much easier and helps you estimate the right answer. and depending on the number after the one your trying to round will determine weather or not the number gets bigger or smaller. if the number is below 5, you round down to the next number down. But if the number in 5 or above you would round up.
Ex: if you have a number with a gross decimal like (43.5639428) you can use this method to simplify the number
To the nearest tenths: 43.6
to the nearest thousandth: 43.56
last week we learnt how to find the prime factorisation of numbers. the prime factorisation is a specific combination of prime numbers that can be multiplied together to result in a product. like the prime factorisation of 30 is ( 2 x 3 x 5 ). in this video i show you how to find the prime factorisation using division tables.