Question

18. B(4, 0), C(4, 3) and D(0, 3) are the vertices of rectangle ABCD. The length of its diagonal is (B) 7 units (A) 5 units (D) 4 units (C) 3 units​

Answer 1

Step-by-step explanation:

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Answer 2

From the diagram we can see that AB =4 units, BC =3 units

Using Pythagoras theorem,

AC2=AB2+BC2

=42+32

AC2=16+9=25

Taking square root on both the sides, we get

AC =5 units.