Notice that
so that
We have
so that
You might already know that
so from these formulas we get
If you don't know the formulas mentioned above:
- The first one should be obvious; if you add
copies of 1 together, you end up with . - The second one is easily derived: If
, then 
, so that 
or 
. - The third can be derived using a similar strategy to the one used here. Consider the expression
, and so on.
Area = [(a)(pi•r^2)]/360
1. set up a proportion
a/360 (# of ° in circle) = area of circle/ (pi•r^2)
2. cross multiply
360area of circle = (a•pi•r^2)
3. divide
I didn’t know but we take last year go to google and write how to find the cube volume and you will get the equation
OL is perpendicular to ON, which means that there is a 90 degree angle being created between these two line segments. So, angle LON is equal to 90 degrees. Because LON is a 90 degree angle and we have two angles within it, those two angles are complimentary. We can add LOM and MON together and they will equal 90 degrees.
3x - 15 + 5x - 23 = 90
8x - 38 = 90
8x = 128
x = 16 degrees
Angle MON = 5x - 23
5(16) - 23 = 57 degrees
Angle MON = 57 degrees
Hope this helps!! :)
Ok so the slashes are division so you would divide
