If you can help me understand theirs with the work that has to be done please mark me brainlest

area of figure = area of two trapezium + area of semi circle

the two trapezium are equal

area of trapezium = 1/2×dum of parallel sides × height

1/2×4+7×3

1/2×11×4= 22in²

22×2

area of the two trapezium= 44in²

area of semi circle= 1/2×πr²

1/2×3.14×2×2

3.14×2

= 6.28in²

area of figure= 44+6.28

= 50.28 in²

hope it helps

people went from manufacturing one object at a time by hand to manufacturing many objects in factories