Answer:
x+12 greater than 10
Explanation:
Given
sides of a triangle measure x cm, 12 cm, and 10 cm
In the solution sum of two sides taken is side with length x and 12
using the concept given
sum of the lengths of two sides of a triangle must be greater than the third side.
sum of two sides with x cm and 12 cm = x+12
third side is 10cm
according to concept
x+12 should be greater than 10
x+12 greater than 10
Thus, correct option is first one x+12 greater than 10.