In the given Fig. ABC is a triangle right angled at B. P and Q trisect BC. Prove that: 8AP2 = 3AC2 + 5AQ2.
In the given Fig, if DE || BC then the value of EC is
2.5 cm
1.4 cm
2 cm
2 cm
C.
2 cm
In the given Fig, are similar, BC = 3 cm, EF = 4 cm and area of ∆ABC = 54 cm2. The area of ∆DEF is