Respuesta :

awkwardsuri

Answer:

D

Step-by-step explanation:

u can use Pythagorean theorem a2 + b2 =c2. c2 is the length of the hypotenuse. plug in 3 for a and 15 for b. 3 squared plus 15 squared equals c squared. 9+225= c2. 234=c2. answer is D. the square root of 234

5kimmie

Answer:

D

Step-by-step explanation:

using Pythagoras theorem, the formulae is

|BC|²=|AC|²+|AB|²

|BC|²=15²+3²

|BC|²=225+9

|BC|²=234

|BC|=²√234