Assuming that the pentagon is regular, what is the area of the shaded region below? Use your calculator and round your final answer to the nearest hundredth.

http://assets.openstudy.com/updates/attachments/51d353d7e4b08d0a48e4a7a1-apexwhatt-1372804086040-fger.jpg

Question

Assuming that the pentagon is regular, what is the area of the shaded region below? Use your calculator and round your final answer to the nearest hundredth.

http://assets.openstudy.com/updates/attachments/51d353d7e4b08d0a48e4a7a1-apexwhatt-1372804086040-fger.jpg

jdoe0001 · Answer

|dw:1412806206478:dw|   get the are of the pentagon
get the area of the square inside it

then subtract the the square area from the pentagon's
and what's left would be the shaded area

anonymous · Answer

64 - 64 = 0 ?

jdoe0001 · Answer

64-64?    wassat?

anonymous · Answer

Look at the picture, both are 8 so i got area of the inside square and outside shape and minus

anonymous · Answer

So what would the answer be then? i dont understand.

jdoe0001 · Answer

well... what's the area of the pentagon?

yes... the area of the square is 8 * 8 = 64

anonymous · Answer

Yes

anonymous · Answer

The answer is 64?

jdoe0001 · Answer

for the square area, yes

for the shaded one... dunno
what did you get for the pentagon's area?

notice is just 1/2 * apothem * perimeter

anonymous · Answer

1/2 * 5.51 * 32 ?

jdoe0001 · Answer

well. is a PENTAgon... so 5 sides
8+8+8+8+8  $\ne 32$

jdoe0001 · Answer

the perimeter is the SUM of all sides

anonymous · Answer

Ah, so 40?

anonymous · Answer

64 - 40 = 24 ??

anonymous · Answer

So 24 would be the answer, correct?

jdoe0001 · Answer

|dw:1412807086366:dw|