Question

Find the perimeter and area of the polygon shown below.
(Full question above)

Answer 1

Answer:

P = 76, A = 330

Step-by-step explanation:

first i added all the sides up which got me 76 . then for area, i multiplied 15 times 18 and got 270. Then i multiplied 15 and 8 which then i got 120. then i divided 120 by 2 and got 60. then i added 60 and 270 which got me to 330

Answer 2

Answer:

P = 76 feet, A = 330 square feet

Step-by-step explanation:

Look at the picture.

The perimeter:

$P=18ft+17ft+8ft+18ft+15ft=76ft$

The formula of an area of trapezoid:

$A=\dfrac{b_1+b_2}{2}\cdot h$

b₁, b₂ - bases

h - height

We have:

$b_1=18ft,\ b_2=18ft+8ft=26ft,\ h=15ft$

Substitute:

$A=\dfrac{18+26}{2}\cdot15=\dfrac{44}{2}\cdot15=22\cdot15=330\ ft^2$