Question

in
C)
What is the area of the regular pentagon? Round your answer to the nearest whole number.
(1 point)
2

Answer 1

I don't have the diagram, so I need to confirm what the "2" means — is that the side length of the regular pentagon?

If the side length s = 2, use the standard formula
A = (1/4)·√[5(5 + 2√5)] · s^2.

With s = 2 this becomes
A = √[5(5 + 2√5)] ≈ 6.8819096,

so rounded to the nearest whole number the area is 7.

If "2" is something else (apothem, circumradius, etc.), tell me which and I’ll recompute.