CalculatorUser

not sure if this helps. but finding the last three digits of something is finding the remainder when divided by 1000

adding on, now that the bisected angle is 30 degrees, we know that the smaller triangle with the red hypotenuse is a 30-60-90 degree triangle too.

We can calculate the red line now.

can you raise the size and/or resolution of your picture? Can't really see.

Here is how I did it:

Draw a square around a green circle in which the circle is perfectly inscribed inside the square.

Find the area of the square, and the area of the circle.

Subtract the area of the circle from the area of the square. The number you get is equal to the area of the central blue part in the picture of your problem.

Then find the area of the blue circle.

Add those values together, and that should be your answer.

Wow that was some BIG latex! cool!

do you HAVE to add 1 at least once?

otherwise you just multiply 2 five times and that is the least because there is no way to get a negative number.

If you do, 

then try to avoid multiplying by 2 AFTER you added 1.

hmmmmm, try visualizing by drawing Venn Diagrams

For number 2.

You have to use similar triangles.

Sorry I ran out of time gotta go 

also, why is "help me please" in the top of Sticky Topics?

Also, for number 1. This is how far I got.

Using the properties of a median through a centroid, I found OB through pythagorean theorem

I also found AO through median properties

Notice that AOB is a right angle through supplements.

I you used pythagorean theorem to find AB?

Notice triangles AOB and ZOB are similar.

Since it is a median, we know that the triangles ZOB and AOB are in a ratio of 1:2, respectively. I also know the area of AOB because base and height are known.

So, how would I find OZ?

So much easier to read with this post: