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The string of a kite in… (Class 10 Maths Basic 2023, Q4)

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MathsCBSE Class 10 · Basic · Board exam 2023, set 430/2/1 · 1 mark · MCQ

CBSE Class 10 Mathematics Basic 2023: question 4

Set in the CBSE Class 10 board exam of 2023, paper 430/2/1, section A, question 4, for 1 mark. Try it first; the hints and our step-by-step solution are below.

Q4 · 1 mark · MCQCompetency-basedSome Applications of Trigonometry

The string of a kite in air is 50 m long and it makes an angle of with the horizontal. Assuming the string to be straight, the height of the kite from the ground is:

  1. (A) m
  2. (B) m
  3. (C) m
  4. (D) m

Source: official question paper from cbse.gov.in (PDF). See it in the full 2023 board paper, set 430/2/1.

Hints

Open one hint at a time and try again before the next.

Hint 1

The string is the hypotenuse of a right triangle.

Hint 2

Which ratio links the opposite side and the hypotenuse?

Step-by-step solution

Each step shows the marks it earns, as an examiner would award them. Checked by an independent re-solve from the question paper.

  1. Height is opposite the angle and the string (50 m) is the hypotenuse, so .

  2. m. Option (D).

    1 mark

Answer: m, option (D)

Where the marks are

  • Uses to get m (1 mark)

Revise the chapter

Practise this chapterBoard-style questions from Some Applications of Trigonometry, one at a time, marked against the answer key and marking points.Back to the full paper2023 board paper, set 430/2/1 (Basic): every question, by section.

The question is transcribed from the official paper; figures are described in words. The solution, hints and chapter tag are ours. Spotted an error? Write tosupport@questionbuddy.in.