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ABC is a triangle. D and E are points on AB and AC respectively. DE is

parallel to BC. Prove that:

I. ∆ ~ ∆

By Amaya

ABC is a triangle. D and E are points on AB and AC respectively. DE is

parallel to BC. Prove that:

I. ∆ ~ ∆

II. Given AD = ½ BD, calculate DE if BC = 4.5cm .

III.
Area of ∆ADE/Area of ∆ABC
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About the author
Amaya

7. Which one of the following is not satisfied the commutative property of multiplication
(A) (-10) x (5) = (5) × (-10)

If 4 mobiles cost $ 320, how many mobiles can be bought for $ 720.

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