2012 · Q86
The sum of the perpendiculars drawn from an interior point of an equilateral triangle is 20 cm. What is the length of side of the triangle?
Elementary MathematicsGeometry
- A40/sqrt(3) cm
- B40*sqrt(3) cm
- C20*sqrt(3) cm
- D20/sqrt(3) cm
Explanation
The sum equals the altitude (sqrt(3)/2)*side = 20, so side = 40/sqrt(3) cm.