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mathstudent55
The legs of an isosceles triangle are congruent; they have the same length, so if one leg measures 2 m, the other leg also measures 2 m.

2m + 2m + b = 7.5 m

b + 4 m = 7.5 m

b = 3.5 m

The length of the base is 3.5 m.

As per linear equation, the length of the base is 3.5m.

What is a linear equation?

A linear equation is an equation that has the highest power of the variable as 1.

Given, the perimeter of an isosceles triangle is 7.5m.

The length of a leg is 2m.

Therefore, the length of the other leg is 2m.

Let, the length of the base is 'x'.

Therefore, [tex](2 + 2 + x) = 7.5[/tex]

⇒ [tex]4 + x = 7.5[/tex]

⇒ [tex]x = 7.5-4[/tex]

⇒ [tex]x = 3.5[/tex]

Learn more about a linear equation here: https://brainly.com/question/13767817

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