Which of these is true?
V5 = 1
B. 15 >
C.
V5 = 21
D.
√5

How do you answer this question? (step by step)

3.4a=57.8 what is the the value of a

The perimeter of an equilateral triangle is 4 cm more than the perimeter of a square and the length of a side of the triangle is 8 cm more than the length of a side of the aware. find the length of a side of the equilateral triangle