13) If AOBC is a rectangle whose three vertices are A(0,3), (0,0) and B(5,0). Then sum of the squares of its both diagonals is units,
(a) 2root34
(b) 68
(c) 34
(d) 2root68​

(b) 68

Step-by-step explanation:

Distance between two points:

Suppose that we have two points, and . The distance between them is given by:

Diagonal:

Diagonals are a line between opposite points in a square.

In this question, it is between A(0,3) and B(5,0), and between (0,0) and (5,3). Both these diagonals have the same measure, and are the distance between these points. So

Then sum of the squares of its both diagonals is units

Both diagonals measure . Sum of squares is:

The correct answer is given by option b.

what is the question here

step-by-step explanation:

the least common denominatore of 7 and 2 is 9

step-by-step explanation:

7+2=9