If a = 2 cm and r = 3.4 cm, find the area of the regular pentagon.
round the answer to one decimal place.
area =
cm

Step-by-step explanation:

Assume a pentagon has equal length where a be the side of the pentagon and r be the apothem of the pentagon.

Given:

Sides of pentagon

apothem of pentagon

The area of the pentagon formula is given below.

Where b = length of the base or side

And h = height of apothem

Now, we substitute side and apothem length in above formula.

Therefore, the area of the pentagon is

the answer is 510

step-by-step explanation:

15 • 13 = 195

15 • 12 = 180

15 • 5 = 75

12 • 5 = 60

195 + 180 = 375

375 + 75 = 450

450 + 60 = 510

answer:

c 60% on edg