Question

if ABCD is rectangle AB =x-3y ,AD=10cm CD=12cm BC =2x+y find x and y​

Answer 1

Step-by-step explanation:

Since, ABCD is a Rectangle & Opposite sides of a Rectangle are Equal

Thus, x-3y=12... (1)

and 2x+y=10..... (2)

Solving 1 & 2 using Elimination, we get

x-3y=12

6x+3y=30

____________

7x=42

Thus, x=6 & y= -2 Answer

Answer 2

Answer:

2x+y=10

x-3y=12

2x+y=10

2x-6y=24

7y=-14

y=-2

2x-2=10

2x=12

x=6