Answer:B. 1,486 metres
Explanation:
Find the area of the triangle.
60 x 60 = 3600
3600 รท 2 = 1800
Area of triangle = 1800 metres
Area of unshaded circle is approximately 314 metres square using pi
1800 - 314 = 1486
1486 metres square is the approximate area of the shaded region.