Question

Help is this correct?

Answer 1

Find value of n.


s = (n - 2)180

s = (6 - 2)180

s = (4)180

s = 720



135 + 62 + 151 + 140 + n + (n + 6) = 720

488 + n + n + 6 = 720

494 + n + n = 720

494 + 2n = 720

494 + 2n - 494 = 720 - 494

2n = 226

2n/2 = 226/2

n = 113

Answer 2

what do you need help with? seems like you solved everything lol

Answer 3

Is it correct?

Answer 4

yees

Answer 5

OK thanks!

Answer 6

if you substitue n = 113 youd get the sum = 720 which is correct!