The sum of the lengths of any two sides of a triangle must be greater than the length of the third side. What are the possible values of X for this triangle? Write and solve an inequality.

(( I don't have a picture, but the longest side is (3x)cm, and the other two sides are (x+5)cm and 40 cm. ))

Question

The sum of the lengths of any two sides of a triangle must be greater than the length of the third side. What are the possible values of X for this triangle? Write and solve an inequality. 

(( I don't have a picture, but the longest side is (3x)cm, and the other two sides are (x+5)cm and 40 cm. ))

vishal_kothari · Answer

x less than 22.5...

campbell_st · Answer

so x + 5 + 40 > 3x

-2x > -45

x < 22.5