Answer: 
Step-by-step explanation:
The given regular polygon has 3 sides, therefore, it is a triangle with all sides equal and called equilateral triangle.
The area of equilateral triangle is given by:-
, where a is the side length of equilateral triangle.
Now, the area of given equilateral triangle with sides = 16 ft. is given by:-

5/11
((4)^2 - 6) / 3(4)+10
16 - 6 / 12 + 10
10/22 we can simplify this further
10 divided by 2
22 divided by 2
You get 5/11 which is the same as 10/22
subtract 5 from both sides. -1.6r=-5 divide both sides by-1.6. r=-5/-1.6 simp;ify-5/1.6 to 3.125. r =3.125
Answer:
5.3×10^1
Step-by-step explanation:
split 53 into a coefficient and a power of 10