9 th strand draw a triangle of perimeter 14 cm and ratio of the sides 3: 4: 5
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the perimeter of triangle =14cm
side in ratio 3,4,5
let ratio be x
side of triangle =3x,4x,5x
now,
perimeter of triangle =sum of all side
14cm =3x+4x+5x
12x=14cm
x=14/12
x=7/6
3x=3×7/6=7/2cm
4x=4×7/6=14/3cm
4x=5×7/6=35/6cm
side in ratio 3,4,5
let ratio be x
side of triangle =3x,4x,5x
now,
perimeter of triangle =sum of all side
14cm =3x+4x+5x
12x=14cm
x=14/12
x=7/6
3x=3×7/6=7/2cm
4x=4×7/6=14/3cm
4x=5×7/6=35/6cm
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