Question

If the sides of a triangle are in the ratio 3:4:5 and its perimeter is 480m, then the length of the
smallest side is -
120m
ii) 160m
iii) 200m
iv) 220m
​

Answer 1

Answer:

I)120M

Step-by-step explanation:

3:4:5

3x+4x+5x=12x

12x=480m

x=40m

3*40:4*40:5*40

120:160:200(m)

the length of smallest side is 120m

option 1 is correct

PLEASE MARK AS BRAINLIEST

Answer 2

Solution!!

The ratio of the sides of triangle and the perimeter is given.

Ratio = 3:4:5

Perimeter = 480 m

We have to find the length of the smallest side of the triangle.

Let the sides be 3x, 4x and 5x.

We know that the perimeter of triangle is the sum of all three sides of the triangle.

→ Perimeter = Sum of all sides

480 m = 3x + 4x + 5x

480 m = 12x

480 m ÷ 12 = x

x = 40 m

Let's put the value of x in the sides of the triangle.

→ 3x = 3 × 40 m = 120 m

→ 4x = 4 × 40 m = 160 m

→ 5x = 5 × 40 m = 200 m

As we can see, the smallest side is 120 m.

The length of the smallest side = 120 m

i) 120 m ✔️