the perimeter of an isosceles triangle is 33 centimetre the ratio of equal side to its base is 5 ratio 1 find the area of the triangle
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Let the sides be 5x,5x and x
perimeter = sum of all sides
33=5x+5x+x
33=11x
33/11=x
3=x
5x= 3×5=15
so sides are 15, 15 and 3
perimeter = sum of all sides
33=5x+5x+x
33=11x
33/11=x
3=x
5x= 3×5=15
so sides are 15, 15 and 3
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