Answer:
Step-by-step explanation:
I would break this into three right triangles and a hemisphere (see image):
Area of hemisphere = 1/2 * pi (2.5)^2
Area of each of the triangles = 1/2 b * h
1) 1/2 5 *7
2) 1/2 4 *4
3) 1/2 3 * 4
Compute these four areas and add them together to get : ~41.3 units^2 (rounded)