2012 · Q68
In a triangle ABC, XY is drawn parallel to BC, cutting sides at X and Y where AB = 4.8 cm, BC = 7.2 cm, BX = 2 cm. What is the length of XY?
Elementary MathematicsGeometry
- A4 cm
- B4.1 cm
- C4.2 cm
- D4.3 cm
Explanation
AX = 2.8 cm; by similarity XY = BC*AX/AB = 7.2*2.8/4.8 = 4.2 cm.