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Can anyone help me in the exercise of 12.2 question no. 3

    • Posted by Shailja Singh 2 years, 1 month ago

    CBSE > Class 10 > Mathematics
    • 5 answers

    Chinki 🦋👈🏻 2 years, 1 month ago

    In 5 minutes, minute hand will rotate =360°/60°×5=30°..........now area of sector of angle 30°=30°/360°×22/7×14×14=22/12×2×14=11×14/3=154/3cm²....................So the area swept by the minute hand in 5 minutes is 154/3cm².....

    1Thank You

    Sachin Singh 2 years, 1 month ago

    Here, r=14cm and theta = 90/3=30° = Theta/360×πr^2 = 30/360 × 22/7 × 14×14 = 154/7cm^2

    1Thank You

    Shailja Singh 2 years, 1 month ago

    I have try but I can't find angle in 5 minutes

    0Thank You

    Nikhil Sharma 2 years, 1 month ago

    Yes

    3Thank You

    Lucky Gamer 2 years, 1 month ago

    First find angle in 5 minutes and then apply sector formulae

    3Thank You

    ANSWER
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