Question

sides of a triangle are in the ratio of 10 : 20 : 30 and its perimeter is 240 cm find its area​

Answer 1

Answer:

10x+20x+30x=240

60x=240

x=240/60

×=4

Answer 2

Answer:

No such triangle is possible

Step-by-step explanation:

Let the sides of triangle be 10a,20a and 30a

10a+20a+30a=240

60a=240

=> a=4

Now sides of triangle are 40,80 and 120

Now we will use Heron's formula which is

Area=√[s(s-a)(s-b)(s-c)]

here s is semiperimeter

=> s=240/2

=120cm

area=√120(120-40)(120-80)(120-120)

= 0

here area of triangle is 0 which is not possible because we know the of a triangle is that "sum of two sides of a triangle must be greater than remaining side".