Answer:
21.2
Step-by-step explanation:
I gotchu boo no worries. So using the distance formula, d= (x² -x¹)² + (y² - y¹)², you put each coordinate with the next until you get all 3 distances. for example, T, (2, -5) and, V, (-1, -1) would be the coordinates put in the formula to find side TV.
