Step-by-step explanation:
the equation of circle is given by

Answer:

Step-by-step explanation:

Keep the variables in the left side & rest in the left side:




One hundred, if ur teacher asks why say the vertical angle theorem
Honestly, I have no idea what it means by decomposition, but this is my best bet on what it means: Dividing the polygon into smaller, easier sections and solve for area and add them up.