📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!

    âš¡ Month End Offer - Flat 52% Off On All Courses! Enroll Now âš¡
    00:00:00 AM Left

    Question

    A 18 m long ladder (whose foot is on the ground) leans

    against a wall making an angle of 60° with the wall. What is the height (in m) of the point where the ladder touches the wall from the ground?
    A 9 Correct Answer Incorrect Answer
    B (9√3)/2 Correct Answer Incorrect Answer
    C 9√2 Correct Answer Incorrect Answer
    D 9√3 Correct Answer Incorrect Answer

    Solution

    In ΔABC ∠C = 180∘ − 30∘ − 90∘ ∠C = 60° Now, sin 60∘ = AB/AC √3/2 = AB/18 ⇒ AB = 9√3

    Practice Next
    More Mensuration Questions