Question

is side of triangle is increased by 10 centimetre if the ratio of the parameters of the new triangle and the given triangle is 5 ratio 4 and the find the perimeter of the given Triangle​

Answer 1

Answer:

120

Explanation:

Let the sides of the triangle be x cm.

According to Question,

the sides of the triangle are increased by 10 cm

∴ the sides will be x + 10 cm.

∵ the ratio of the perimeter of new triangle and the given triangle is 5:4

perimeter of the new triangle will be : x + 10 + x + 10 + x + 10

= 3x+30

perimeter of the old triangle will be : x + x + x = 3x

∴ 3x+30$\frac{3x+30}{3x} = \frac{5}{4}$

12x+120=15x

3x=120

x=40

So, the perimeter of the old triangle will be 40+40+40=120

and, the perimeter of the new triangle will be 50+50+50=150

Answer 2

120 cm

Explanation:

Given:

Ratio of parameters of the new triangle and the given triangle =

5:4

Let us assume,

each side = x

The perimeter of the triangle= 3x

New perimeter= 3x+30 (Increased by 10)

So,

⇒3x+30:3x = 5:4

⇒(3x+30) / 3x = 5/4

⇒4(3x+30) = 3x(5)

⇒12x+120 = 15x

⇒120 = 15x-12x

⇒=3x

⇒120/3=x

⇒40=x

perimeter of given tringle=3x

⇒3 ×(40)

=120cm

Thus, the correct answer is = 120 cm.

Learn more :

parameter of triangle : https://brainly.in/question/14516028