Find area of the regular pentagon with a side length of 10cm round to nearest tenth.

172 cm^2

Step-by-step explanation:

tan 72/2 = 0.7265

0.7265 = 0.5(10)/h

h = 6.88

6.88 x 10 x 0.5 = 34.4

34.4 x 5 = 172 cm^2

172.1

Step-by-step explanation:

172.05 rounded to the tenths place is 172.1

aloha~! my name is zalgo and i am here to you out on this amazing day. to answer your question, yes, nonzero numbers can have a greatest common factor and that would be 1. still don't get it? let me considering every number is divisible by 1 and hence every number has 1 as a factor of theirs. so, if 2 nonzero numbers didn't share any gcf (greatest common factor), they would still have a factor in common and that would be 1.

i hope that this ! : p

"stay and stay proud! " - zalgo

(by the way, do you mind marking me as brainliest? i'd greatly appreciate it! mahalo! x3)