Respuesta :

mathstudent55

Answer:

A

Step-by-step explanation:

18 * 18 = 324

19 * 19 = 361

The area of the frame is 357 sq in. which is between 324 sq in. and 361 sq in., so the side is between 18 in. and 19 in.

Answer: A.

sreedevi102

Answer:

Option A . Between 18 and 19

Step-by-step explanation:

Area = a²

357 = a²

[tex]\sqrt{357} = a\\\\a = 18.9 \ in[/tex]