Question

in a rectangle ABCD if diagonal AC=(5x+5) cm and diagonal BD=(7x-9) cm then find the length of AC​

Answer 1

Step-by-step explanation:

Since diagnals of rectangle are equal so AC = BD

5x+5 = 7x-9

2x =14

x=7

Ac = 40cm

Answer 2

Answer:

15

Step-by-step explanation:

(5x+5) = (7x-9)

5x+5=7x-9

5x-7x=-9+5

-2x=-4

x= -4/-2

x=2

AC=(5x+5)

       =10+5

        =15