Question

the perimeter of triangle Garden is 900 cm and its sides are in ratio 3:5:4 using heron's formula find the area of triangle Garden

Answer 1

3:5:4 is the ratio
is equal to 900 CM
$3x + 5x + 4x = 900cm \\ 12x = 900 \\ x = \frac{900}{12} = 75$
therefore side 1 =3x=3×75=225cm
side 2=5x=5×75=375 cm
side 3=4x=4×75=300 cm

s= sum of all sides by 2

Answer 2

3:5:4 is the ratio 
is equal to 900 CM 
\begin{lgathered}3x + 5x + 4x = 900cm \\ 12x = 900 \\ x = \frac{900}{12} = 75 \\\end{lgathered}3x+5x+4x=900cm12x=900x=12900​=75​ 
therefore side 1 =3x=3×75=225cm
side 2=5x=5×75=375 cm
side 3=4x=4×75=300 cm

s= sum of all sides by 2

3370cm2 answer