Answer:
54 cm
Step-by-step explanation:
The area (A) of an equilateral triangle is
A = 
( s is the side length ) then
= 81
( multiply both sides by 4 to clear the fraction )
s² = 324 ( divide both sides by )
s² = 324 ( take the square root of both sides )
s = 
= 18
Thus
perimeter = 3 × 18 = 54 cm
<span>The area of a square is (length of side)^2 , the perimeter of a square is 4*(length of side)
Then your answer is 4 * sq rt (506.25 f`t^2) = 4 * 22.5 ft =
= 90 ft of fence</span><span>Source(s):</span>
Answer:
2/3
Step-by-step explanation:
2/5=0.4 and 4/7=0.571428
0.57<0.571428
---------------------------
2/3=0.6667
which is greater than or equal to 4/7
The answer would be a (5) (41) hope that helped
