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dem82 [27]
3 years ago
9

Some one can you please help me

Mathematics
1 answer:
dedylja [7]3 years ago
7 0

Answer:

48.25 m²

Step-by-step explanation:

Surface area = base‘area + lateral area

base‘area = the area of the triangle of base 4.3 and height 5

lateral area = 3×(Area of a trianglre of base 5 and height 5)

base‘area = (5×4.3)÷2

lateral area = ((5×5)÷2)×3

then

Surface area = ((5×5)÷2)×3+(5×.,3)÷2 = 48.25

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