Question 1096752
Let {{{ s }}} = the length of the shortest side in cm
The lengths of the sides are:
{{{ s }}}, {{{ 3s }}}, and {{{ 3s }}}, all in cm
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{{{ s + 3s + 3s = 42 }}}
{{{ 7s = 42 }}}
{{{ s = 6 }}}
and
{{{ 3s = 18 }}}
The sides are 6, 18, 18, all cm
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check:
{{{ 6 + 18 + 18 = 42 }}}
{{{ 42 = 42 }}}
OK