Question

The area of sector AOB is 20.25 pi ft2. Find the exact area of the shaded region.

Answer 1

area of triangle

Area = (base*height)/2

A = (bh)/2

A = (9*9)/2

A = 81/2

A = 40.5

Area of Shaded Region = (Area of Sector) - (Area of triangle)

Area of Shaded Region = (20.25pi) - (40.5)

Area of Shaded Region = 20.25pi - 40.5

Answer 2

23.085

Answer 3

Yes Correct.

Answer 4

Answer Choices
A. (20.25pi-40.5) ft2
B. (20.25pi-81) ft2
C. (20.25pi-40.5sqrt2) ft2
D. none of these

So would the answer be D ?

Answer 5

Or a ?

Answer 6

(20.25pi-40.5) ft2

Answer 7

A