A triangle with 7,?, and form a right triangle.
1 answer:
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we know that
the area of the complete square is equal to
where
b is the length side of the square
so
m²
the area of one corner is equal to the area of a triangle
so
the area of corners is equal to
the area A of the resulting figure as a function of x is equal to
area of the square minus the area of corners
m²
the answer is
m²