Respostas

2013-06-03T23:15:16-03:00

A/4=90-A

360-4A=A

5A=360

A=72°

 

1 5 1
2013-06-03T23:15:23-03:00

A/4 = 90-A

A = 4(90-A)

A = 360-4A

5A = 360

A = 72

2 5 2