1.

A OBC is a rectangle whose three vertices are A(0, 3), O (0, 0) and B (5, 0). The length ofits diagonal is​

Answer»

ACCORDING to the question,

We will use DISTANCE formula

\sqrt{ {x }^{2} +  {y}^{2}  }

AO= Squareroot of 0^2 + 3^2

=> AO = Squareroot of 0 +9

=> AO = Squareroot of 9

AO = 3 units

Now,

BO = Squareroot of 5^2 +0^2

=> BO= squareroot of 10+0

=> BO = Squareroot of 10

=> BO = 5 units

Thereby,

{diagonal}^{2}   =   {length}^{2} +  {breath}^{2}

SO,

AB^2 = AO^2 + BO^2

=> AB^2 = (3 units)^2 + (5 units)^2

=> AB^2 = 9 sq. units + 25 sq. units

=> AB^2 = 34 sq. units

=> AB = Squareroot of 34 units

Hence,

Length of diagonal of a rectangle is square root of 34 units



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