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

answer: 5 17/33 % (to the tenth)

step-by-step explanation:

he guessed: 34.5 pounds

actual weight is 32.7

there for he is off:

34.5 -32.7 = 1.8

32.7 is the 100%

1.8 represents %? of 32.7

therefore:

32.7   - 100%

1.8     -     x%

x= 1.8*100%/32.7% = 18*100%/327%

x=1800%/327%   = (5 165/327)%

to the tenth:

5 17/33 %