Answer:
Area:
[tex]36\pi - 72 \: cm {}^{2} [/tex]
Step-by-step explanation:
[tex]( \frac{1}{4} \times \pi \times 12 {}^{2} ) - ( \frac{1}{2} \times 12 \times 12) = 36\pi - 72[/tex]
Area of the blue area:
[tex]36\pi - 72 \: cm {}^{2} [/tex]
Perimeter of blue area:unsure as no numbers are given for the slanted side if the triangle.
