Answer:
The area of the figure is 385.5 in²
Explanation:
The  area of the figure = area of hemisphere + area of rectangle
Radius of hemisphere = 10/2 = 5 in 
=> 3πr² + length × breadth 
=> { 3×(3.14) × 5 × 5} + { 15 × 10 } 
=> { 9.42 × 25 } + { 150 } 
=> 235.5 + 150 
=> 385.5 in²