Find the perimeter of the following shape, rounded to the nearest tenth:
22.8
19.1
12.4
6.9

I just took the test and 19.1 is the correct answer

22.8

Step-by-step explanation:

Each Side is approximately 5 units in length. If you multiply that by the amount of sides there are you'll get around 20

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2