Os números são 1180 e 440. <span>¡Espero que esto ayude!</span>
1. The surface that will be exposed to the rain is the lateral surface of the cylinder and the hemisphere.
2. The lateral area of the cylinder is a rectangle with height equal to the height of the cylinder and width equal to the circumference of the base of the cylinder.
3. the circumference of the base = 2
r=2*
*5=10
so the lateral area = 10
*h=10
*40=400
(
)
4. The surface area of a sphere is
so the surface of the hemisphere =
(
)
5. Total area exposed = 450
Length of AB=Length of A'B' because they are corresponding sides.
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