Question

Sides of a triangle are in ratio of 12:17 and its perimeter is 540cm finding its area

Answer 1

hey!

you have not given the complete ratio

ratio of sides to the third side isn't given

so, complete your question

kind request

Answer 2

Answer:

$\Large{\underline{\underline{\bf{Given:-}}}}$

• $\leadsto$Sides of a triangle are in the ratio of 12:17:25 and its perimeter is 540cm.

$\begin{gathered}\end{gathered}$

$\Large{\underline{\underline{\bf{To \: Find:-}}}}$

• $\leadsto$Area of Triangle

$\begin{gathered}\end{gathered}$

$\Large{\underline{\underline{\bf{Soluntion :-}}}}$

$\underline{\pmb{\sf{\red{Let\: the\: side\: be,,}}}}$

• $\leadsto$ 12x
• $\leadsto$17x
• $\leadsto$25x

$\begin{gathered}\end{gathered}$

$\underline{\pmb{\sf{\red{According\: to\: the\: question,}}}}$

$:\implies$ 12x +17x + 25x = 540

$:\implies$ 54x =540

$:\implies$ x = 10

Therefore the value x is 10

$\begin{gathered}\end{gathered}$

$\underline{\pmb{\sf{\red{Hence,}}}}$

• $\leadsto$12x =12×10 =120
• $\leadsto$17x =17×10=170
• $\leadsto$25x= 25×10=250

The sides of the triangle are 120,170,250

$\begin{gathered}\end{gathered}$

$\underline{\pmb{\sf{\red{Now, To \: find\: area\: of\: triangle,}}}}$

S = a+b+c/2

$:\implies$ 120 +170 +250 /2

$:\implies$ 270

By using herons formula

$:\implies$ √s( s-a) (s-b) (s-c)

$:\implies$ √270(270-120) (2 70-170) (270-250)

$:\implies$ √270*150*100*20

$:\implies$ √81000000

$:\implies$ 9000cm

Therefore the area of the triangle is 9000 cm².