Given:
Given that the lengths of to sides of a triangle are 7 am and 11 cm.
Required: Identify the length of the third side which is not possible.
Step-by-step explanation:
Use the triangle inequality which states that the sum of any two sides of a triangle is greater than or equal to the third side, that is, the third side of a triangle must be equal or less than the sum of the other two sides.
Here, the sum of the two given sides i 7+ 11 = 18.
So, the third side cannot be greater than 18.
FromI the given options,19 > 18. Hence it cannot be the length o the third side of the triangle.
Final Answer: The length which could not be the measure of the third side is 19 cm.