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Sagot :
Answer:
- 20 m
Step-by-step explanation:
We have similar triangles here.
- BC║DE, AB║AD and AC║AE ⇒ ΔADE ~ ΔABC
The ratio of corresponding sides of similar triangles is same:
- BC/DE = AC/AE
- BC / 2 = 30/3
- BC / 2 = 10
- BC = 2*10
- BC = 20 m
Take the similar triangles,
→ ∆ADE ≈ ∆ABC
Now we can find,
The height of the tree in meters,
→ BC/DE = AC/AE
In this equation BC is the height of tree,
→ BC/2 = 30/3
→ BC/2 = 10
→ BC = 10 × 2
→ BC = 20
Hence, the height of the tree is 20 m.
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