Question

Am I Correct?

Brennan is making a poster for the drama club’s new production. It is a regular pentagon with side lengths of 12 inches. The school wants to put up a giant replica of the poster during athletic events.

If the length of each side is 8 times the original, how many times larger is the area of the replica than the area of the original?

Answer 1

I got 64 as my answer

Answer 2

yep. it is ...
area get's squared ... by the multiplication factor

Answer 3

ok so i am correct? just making sure.

Answer 4

if you want ... you can check.
the area of pentagon is

Answer 5

you can use Sine law to find out other sides
\[ {\sin A \over a} = {\sin B \over b} ={\sin C \over c}\]
and total area = \( 5 \times {1 \over 2} \sin A \; b \times c\)

Answer 6

the initial side length wasn't really needed actually...