The perimeter of an equilateral triangle is $15 \mathrm{~m}$. What is the length of each side of the triangle?
(A) $7.5 \mathrm{~m}$
(B) $5 \mathrm{~m}$
(C) $3.75 \mathrm{~m}$
(D) $10 \mathrm{~m}$
(E) $17 \mathrm{~m}$
An equilateral triangle has 3 sides of equal length.

If the perimeter of an equilateral triangle is $15 \mathrm{~m}$, then the length of each side is $\frac{15 \mathrm{~m}}{3}=5 \mathrm{~m}$.

ANsWer: (B)