Question 7 ABCD is a rectangle whose three vertices are B (4, 0), C (4, 3) and D (0, 3). The length of one of its diagonals is (A) 5 (B) 4 (C) 3 (D) 25
Length of Diagonal
= Distance b/w B (4, 0) and D (0, 3)
= √((𝑥2 −𝑥1)2+(𝑦2 −𝑦1)2)
= √((0−4)2+(3 −0)2)
= √((−4)2+(3)2)
= √(16+9)
= √25
= 5 units
So, the correct answer is (A)

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.

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