Respuesta :

darkspeed

Answer:

x = 20

Step-by-step explanation:

Diagonals bisect so you can set the two equal to each other

3x + 3 = 6x - 57

Solve:

3 = 3x - 57

60 = 3x

20 = x

MinecraftCnr

Answer:

Set 2x+3 and 6x-57 equal to each other since both halves of The diagonal are equal length therefore equal measurement

Step-by-step explanation:

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