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Question
ABCD is a rectangle whose three vertices are A(4,0), C(4,3) and D(0,3). Find the length of one its diagonal.
Solution
The given vertices are B(4, 0), C(4, 3) and D(0, 3) Here, BD one of the diagonals So
BD =`sqrt((4-0)^2+(0-3)^2)`
`= sqrt((4)^2 +(-3)^2)`
`=sqrt(16+9)`
`= sqrt(25)`
= 5
Hence, the length of the diagonal is 5 units .
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