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26-05-2021
Mathematics

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use special right triangle:
What is the length of (BD)

What is the length of (BC)

use special right triangle What is the length of BD What is the length of BC class=

Respuesta :

akposevictor akposevictor

31-05-2021

Answer:

BC = 6.9

Step--step explanation:

Reference angle = 30°

Adjacent = BC

Hypotenuse = 8

Apply trigonometric function, CAH:

Cos 30° = Adj/Hypotenuse

Cos 30° = BC/8

8*Cos 30° = BC

6.92820323 = BC

BC = 6.9 (to the nearest tenth)

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