Question

If the sides of a triangle are, (x-1) cm and (x+2) cm. IF the perimeter is 31 cm, then the SHORTEST side is

Answer 1

Answer:

9cm

Step-by-step explanation:

Given: the sides are x, x-1, x+2 and perimeter=31

To find: shortest side

Solution:

sum of length of sides=perimeter

x+(x-1)+(x+2)=31

3x+1=31

3x=31-1

3x=30

x=10

Therefore, the sides are: 10,(10-1),(10+2)=10,9,12

shortest side=9cm