Question

The coordinates of the vertices of quadrilateral ABCD are A(3, 4), B(7, 4), C(1, 1), and D(1, 3).

ABCD is reflected across the x-axis to form PQRS. What is the length of diagonal PR?

Square root of 53units

3 times square root of 5units

Square root of 13units

Square root of 37units

Answer 1

Is it C? @mathslover @ash2326

Answer 2

yes. that's what i get.

Answer 3

Thanks :)

Answer 4

you actually don't even have to do the reflection, right? Since after reflecting, it will have the same size, you can just measure the distance from A to C.