Answer:
28.5 in²
Explanation:
find the area of the quarter circle:
(pi x r²)/4
100pi/4 =
25pi
To get the shaded region minus the triangle from the quarter circle:
Formula for triangle is bh/2
25 pi - Area of triangle
25 pi - (10x10)/2
25pi - 50
Which is approximately 28.5 square inches.