Triangles

⭐ Important Questions

1. In triangle ABC, DE || BC, AD = 1.5 cm, DB = 3 cm, AE = 1 cm. Find EC.
   Show Solution

   By BPT (Thales theorem): ADDB = AEEC\n=> 1.53 = 1EC\n=> EC = 3 x 11.5 = 2 cm
2. Sides of two similar triangles are in ratio 4:9. Find ratio of their areas.
   Show Solution

   Ratio of areas = (ratio of sides)² = (49)² = 1681