3. Two equal sides of an isosceles triangle are 3x - 1 and 2x + 2 units. The third side is 2x units. Find x and the perimeter of the triangle
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Step-by-step explanation:
In isosceles triangle two sides are equal,
So,
3x-1=2x+2
x=3
Perimeter=sum of all sides
=3x-1+2x+2+2x
=7x+1
Substituting value of x
Perimeter=7(3)+1
=21+1
=22
Thus x=3 and Perimeter of a triangle=22 square units
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