Question

Construct a triangle whose perimeter is 12 and them and the ratio of the side 3 ratio 4 ratio 5

Answer 1

let common multiple of ratios be x.
therefore perimeter of triangle =sum of all sides=12....(given)
=3x+4x+5x=12
=12x=12
=x=1
therefore sides triangle are as follows:-
3x=3×1=3
4x=4×1=4
5x=5×1=5
therefore these are the required sides whose =sum is 12
therefore now,
draw first 5cm line name it as point AB
then draw 3cm and 4cm line on line AB
join 3cm and 4cm line
that is the required triangle...
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