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Case study based – 1: In …

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Case study based – 1: In a room , 4 friends are seated at the points A, B, C and D as shown in figure. Reeta and Meeta walk in to the room after observing for a few minutes Reeta asks Meeta. Ask Meeta
  • 2 answers

Sumesh ☺️☺️☺️ 4 years, 8 months ago

Where is the figure ?

Gaurav Seth 4 years, 8 months ago

In a classroom, 4 friends are seated at the points A, B, C and D as shown in Fig. 7.8. Champa and Chameli walk into the class and after observing for a few minutes Champa asks Chameli, “Don’t you think ABCD is a square?” Chameli disagrees. Using distance formula, find which of them is correct.

Fig. 7.8

<hr />

Let A(3, 4), B(6, 7), C(9, 4) and D(6, 1) be the given points. Then

]

We see that,
AB = BC = CD = DA
and    AC = BD
Therefore, ABCD is a square.
Hence, Champa is correct.

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