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Sindrei [870]
3 years ago
6

What is the value of a? ✅6√2 ❌9 ❌8√3 ❌36√2

Mathematics
1 answer:
Verdich [7]3 years ago
4 0

Answer:

6√2.

Step-by-step explanation:

Triangles CDE and DBE are similar.

Therefore:

a / 18 = 4 / a

a^2 = 4*18

a^2 = 72

a^2 = 36*2

a = √36*√2

a = 6√2.

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