Question

perimeter of the triangle of sides are in consecutive number is 12 m find the length of its side​

Answer 1

1. 3
2. 4
3. 5

Step-by-step explanation:

let sides be x, x+1, x+2

sum of the sides = 12

equate the equations so

x+x+1+x+2=12

3x=12-3

3x=9

so x=3

Answer 2

Answer:

The length of the three sides of the triangle are 3m, 4m and 5m.

Step-by-step explanation:

• In the question, it is given that the sides of the triangle are three consecutive numbers.
• Let the three sides of the triangle are x, x+1, x+2.
• It is given that the perimeter of the triangle is 12m.
• The perimeter of the triangle is the sum of the three sides of the triangle.
• According to the question, x+x+1+x+2 =12m
• x+x+x+3=12m
• 3x+3=12m
• 3x=12-3
• 3x=9
• x=9/3
• x= 3m
• x= 3mx+1= 3+1= 4m
• x= 3mx+1= 3+1= 4mx+2= 3+2= 5m

Conclusion:

The length of the three sides of the triangle are 3m, 4m and 5m .