Question

The side of a tringle are in the ratio 1:2:3.If the perimeter is 30 .find the side​

Answer 1

Answer:

Here your answer

Step-by-step explanation:

1. Perimeter of triangle =30cm
2. Ratio of its sides are =1:3:2
3. sides are x,3x,2x
4. x+3x+2x=30cm
5. 6x=30
6. x=5cm

Answer 2

Given :

• The ratio of the sides of a triangle = 1 : 2 : 3

• Perimeter of the triangle = 30 units

To find :

• Sides of the triangle

Solution :

Let,

• The first side of triangle = 1x
• The second side of triangle = 2x
• The third side of triangle = 3x

Using formula,

→ Perimeter = a + b + c

where,

• a = First side of triangle

• b = Second side of triangle

• c = Third side of triangle

Substituting the given values :-

→ 1x + 2x + 3x = 30

→ 6x = 30

→ x = 30 ÷ 6

→ x = 5

→ The value of x = 5

Substitute the value of 'x' in the sides of triangle which we've assumed :-

→ First side = 1x

→ First side = 5 cm

→ Second side = 2x

→ Second side = 2(5)

→ Second side = 10 cm

→ Third side = 3x

→ Third side = 3(5)

→ Third side = 15 cm

Therefore, the three sides of the triangle are 5 cm, 10 cm and 15 cm