If ∆ABC is a right angled triangle with angle B= 90° ,angle A=30°, AC=18, then BC will be ​

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If ∆ABC is a right angled triangle with angle B= 90° ,angle A=30°, AC=18, then BC will be ​

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Savannah 4 weeks 2021-08-14T19:53:04+00:00 1 Answer 0 views 0

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    2021-08-14T19:54:14+00:00

    Answer:

    Step-by-step explanation:

    FRST FINDBTHE ANGLE C THAT IS =60 DEGREE(180-90 + 30=60)

    VALUE OF COS 60 DEGREE=BASE÷HYPOTENUSE =

    BC÷AC

    COS 60 =BASE÷HYPOTENUSE

    1÷2=BC÷18

    BC=9

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