Some Applications of Trigonometry

Bihar Board Class 10 · Mathematics · 12 past questions

1. Q1 2026

   If the length of the shadow of a tree is equal to its height then angle of elevation of the sun is

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2. Q2 2026

   A 15 m long ladder is resting at the top of a vertical wall forming an angle 60° with the wall ; then the…

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3. Q3 2025

   The angle of elevation of the top of a tower at a distance of 10 m from its base is $60^\circ$ ; then the…

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4. Q4 2025

   A kite is a at a height 30 m from the earth and its string makes an angle $60^\circ$ with the earth. Then the…

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5. Q5 2022

   The ratio of the length of a rod to its shadow is $1:\sqrt{3}$, so the angle of elevation of the sun is

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6. Q6 2020

   The length of the string of a kite flying at a height of 100 m from the ground and angle of elevation…

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7. Q7 2019

   If the length of the shadow of a vertical pole is $\sqrt{3}$ times the height of the pole, then the angle of…

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8. Q8 2018

   If the inclination of Sun's ray increase from $45^\circ$ to $60^\circ$, the length of shadow of a tower…

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9. Q9 2018

   The angle of elevation of the Sun, when length of shadow of a vertical pole is equal to its height is -

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10. Q10 2018

    A 6m height pole's shadow on the earth is $2\sqrt{3}$ m long, then the Sun's elevation is -

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11. Q11 2018

    A tree of 6m height casts a 4m long shadow. At the same time a flag post casts a shadow 50 m long. The height…

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12. Q12 2018

    If two towers of height $h_1$ and $h_2$ subtend angle $60^\circ$ and $30^\circ$ at the midpoint of line…

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