Problem: To solve this problem...
Find the area of the shaded part of this figure. (the inside figure is a circle. Find the circle's radius)use (

See the circle notes for an explanation of the circle. The circle's circumference is times its diameter
Enter your answer:
Your answer may be in any of the following forms:
  • Integer (positive,negative,zero)
  • Decimal (must be accurate to 4 places)
  • Fraction (e.g., '3/4')
  • Mixed number (e.g., '4 3/4')
  • Scientific notation (e.g., '1.2e-02')
  • Single words, correctly spelled (e.g.,'isosceles')