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LekaFEV [45]
2 years ago
7

10 of 10

Mathematics
2 answers:
olga nikolaevna [1]2 years ago
7 0

Answer:

456mm²

Step-by-step explanation:

using formula;

b/2( P - 2b) = A

substitute values

Fed [463]2 years ago
4 0

Let the height of the rectangle = h

2b + 2h = 100

2(38) + 2h = 100

2h = 100 - 76

h = 12mm

area of rectangle = base x height

= 38 x 12

= 456mm²

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