Question

ABCD is a rectangle.diagonal AC measures 2x+3 and diagonal BD measures 4x -21 .find the value of x and the measure AC and BD​

Answer 1

Answer: rectangle diagonals AC,BD

AC=2X+3;BD=4x-21

AC is parallel BD

So AC=BD

2x+3=4x-21

-4x+2x=-21-3

-2x=-24

X=-24/-2

X=12cm