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In DeltaABC, a=4, b=6 and angleB=30^(@),...

In `DeltaABC`, a=4, b=6 and `angleB=30^(@)`, evaluate sinA.

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Knowledge Check

  • In DeltaABC, AB=AC and angleB=50^(@) . Then, angleA= ?

    A
    `40^(@)`
    B
    `50^(@)`
    C
    `80^(@)`
    D
    `130^(@)`

  • In DeltaABC, BC=AB and angleB=80^(@). Then, angleA= ?

    A
    `50^(@)`
    B
    `40^(@)`
    C
    `100^(@)`
    D
    `80^(@)`

  • In DeltaABC , a=12 m, angleB=30^(@) and angleC=90^(@) , then area of DeltaABC=?

    A
    `2npi+ (5pi)/(12)`
    B
    `2npi-(5pi)/(12)`
    C
    `npi+(5pi)/(12)`
    D
    `npi-(5pi)/(12)`

    • Similar Questions

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    In DeltaABC if AB=AC and angleB=70^(@) , then angleC=2a^(@) . Find the value of a

    i) In DeltaABC , if b=17, c=11 and angleA=60^(@) , find tan(B-C)/(2) ii) In DeltaABC, angleB=90^(@) , then prove that: tanA/2=sqrt((b-c)/(b+c))

    In a DeltaABC, angleB=65^(@) and angleC=80^(@) , then the longest side is _________.

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    In DeltaABC , a=12 cm, angleB=30^(@) and angleC=90^(@) , then area of DeltaABC=?

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