The figure below shows a triangular piece of cloth: Triangle ABC has angle ABC equal to 90 degrees and angle BAC equal to 33 deg

Question

The figure below shows a triangular piece of cloth:

Triangle ABC has angle ABC equal to 90 degrees and angle BAC equal to 33 degrees. Length of AC is 7 inches.

What is the length of the portion BC of the cloth?

7 cos 33°
sin 33 degrees divided by 7
7 sin 33°
cos 33 degrees divided by 7

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Hải Đăng 3 years 2021-08-01T02:38:20+00:00 1 Answers 45 views 0

Answers ( )

  1. Sigrid
    0
    2021-08-01T02:39:44+00:00
    Reply

    Answer:

    • C. 7 sin 33°

    Step-by-step explanation:

    Since B is right angle, AC is hypotenuse as opposite it.

    BC is opposite to angle A which is 33°.

    We know that:

    • sine = opposite / hypotenuse

    So we have:

    • sin 33° = BC / 7 ⇒ BC = 7 sin 33°

    Correct choice is C

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