two equal sides of a triangle are 4metre less than three times the third side. find the dimensions of the triangle, if it's perimeter is 55metre
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Let the third side be denoted by x.
Then the equal sides=3x-4
But, 3x-4+3x-4+x=55 (total perimeter)
Therefore, 7x=55+8
Or, 7x=63
Therefore x=9.
And the equal sides= 3*9-4=23.
Hope this helped.:)
Then the equal sides=3x-4
But, 3x-4+3x-4+x=55 (total perimeter)
Therefore, 7x=55+8
Or, 7x=63
Therefore x=9.
And the equal sides= 3*9-4=23.
Hope this helped.:)
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