The definition is pretty simple:
So, we only have to sum the expressions:
Had 2 pages of algebra ! :C my brain is not working anymore..
1 answer:
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Ok, so;
Let me draw the figure here below:
We know that the area of a circle can be found using the next equation:
Area = πr².
Where r is the radius and π is a number.
So, the area of this circle, will be:
Area = π(1km)²
Area = π km²
Answer:
24
Step-by-step explanation:
I use the Pythagoras theorem.
16 x 36= 576