Respuesta :

Answer:

a= 7.4

Step-by-step explanation:

judygachanja

Answer:

7.4                                                                                                      

Step-by-step explanation:

Get the squares of the two given sides , subtract them , to get a squared.

square root the answer , which is 55 , to get the actual side , which is 7.416...

round off to 1 dp to get 7.4