Question

Will medal!! What is the dimensions of an octago nwith the area of 154cm?

Answer 1

Referencing your textbook, lecture, online, or notes, what is the formula for the area of an octagon?

Answer 2

A=2(1+2)a2

Answer 3

@stamp

Answer 4

are there any options?

Answer 5

Sadly no

Answer 6

\[A=2(1+\sqrt{2})a^2\]

A is area, and a is the side length.

We don't need options! this is math

Answer 7

They told us already A = 195. Substituting 195 for A into our formula\[195=2(1+\sqrt{2})a^2\]

Answer 8

Are you able to get the a-squared by itself?

Answer 9

Yes

Answer 10

Thanks i think i figured it out

Answer 11

\[\frac{195}{2(1+\sqrt{2})}=a^2\]

Answer 12

\[\sqrt{\frac{195}{2(1+\sqrt{2})}}=a\]