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Question 37 (Case Based Questions) A group of class X students goes to picnic during winter holidays. The position of three friends Aman, Kirti and Chahat are shown by the points P, Q and RLet’s mark the coordinates Question 37 (i) Find the distance between P and R.We need to find distance PR PQ = √((𝒙𝟐 −𝒙𝟏)𝟐+(𝒚𝟐 −𝒚𝟏)𝟐) Here, x1 = x coordinate of P = 2 y1 = y coordinate of P = 5 x2 = x coordinate of Q = 8 y2 = y coordinate of Q = 3 Putting values PR = √((𝟖 −𝟐)𝟐+(𝟑 −𝟓)𝟐) = √((6)2+(−2)2) = √(36+4) = √𝟒𝟎 = √(4 × 10) = √4 × √10 = 2 × √10 = 2√𝟏𝟎

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 15 years. He provides courses for Maths, Science and Computer Science at Teachoo