Answer: 4%
Step-by-step explanation: 50 x 2 = 100
2x2=4 4/100 or 4%
The perimeter of a Pentagon is all the length of the sides added up
A pentagon is a five sided shape
so...
900+900+900+900+900
or 900*5
That is 4500.
The perimeter of the Pentagon Building in Washington DC, whose side is 900 feet long, is 4500 feet around.
Hope this helps :)
Answer:
i think the 2nd one is correct .. i have not fluent in english to explain the answer.
Answer:
The perimeter is 
Step-by-step explanation:
we know that
The perimeter of the figure is equal to the circumference of a semicircle
plus the perimeter of a square minus the diameter of the circle
so

we have



The diameter of the circle is equal to the length side of the square
substitute



5y = 135....divide both sides by 5
y = 135 / 5
y = 27 <==