Question

A)
If an equilateral triangle has a perimeter of 48, what is the length of the perpendicular bisector of any of its sides?
(1 point)
16
16 3
–
√
8
8 3
–

Answer 1

Perimeter 48 ⇒ each side s = 48/3 = 16.
In an equilateral triangle the perpendicular bisector = altitude = s·√3/2 = 16·√3/2 = 8√3.

Answer: 8√3.