a. true
b. false ( angles should equal 180 125+65=190)
c. true
d. true
e. true
Answer:
Step-by-step explanation:
Remember the entire circle has 360 degree. You have everything you need to find angle b.
Your total circle at 360, the measurement 300 and 37.
Calculate area of the white region inside circle.
Area of the two white triangles in top left and bottom right:

Area of the two white quarter circles in the bottom left and top right:

Total area of unshaded white region inside circle:

Area of entire circle including the white and shaded regions

Area of shaded region is area of entire circle - area of unshaded white region

Letter D because you need to multiply all the letters of the alfabet (36) and multiply 36 by 1000 and then divide the answer by 100 and you get the letter D