Question

Q.5) The perimeter of a triangular plot is 180 m. It's sides are in a fixed ratio 5:6:7 .Find the total area of triangular plot


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Answer 1

Answer:

Let the 3 sides of the triangle be 18x.

Given ,Perimeter = 180cm

Also,P=a+b+c

180=18x ( 5x+6x+7x = 18x )

x=10 cm.

Semi perimeter = a+b+c÷2 / p/2

= 9 cm. ( 18/2 =9 )

Using Heron's formula, we will find area.

Refer attachment

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Answer 2

Step-by-step explanation:

Let the sides of the triangle be 4x,5x,6x, respectively.

Perimeter of triangle =4x+5x+6x

⇒150=15x

⇒x=10

Therefore, the sides are 40 cm, 50 cm, and 60 cm