A plane flying overhead at night is located by two

Mathematics

1 answer:

Gemiola [76]2 years ago

6 0

Answer:

Step-by-step explanation:

Let the distance of two consecutive stones are x, x+1.

In ΔBCD, we have

tan60

⇒x=

.....(i)

In ΔABC, we have

tan30

x+1

⇒

x+1

⇒

+1=

h ......[from equation (i)]

⇒

⇒h=

solution

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