Question

1. Complete the following
2x+y+ 8
2y
I am a rectangle
x + 4
Find the value of x and y
44- y
Find my perimeter and area​

Answer 1

Step-by-step explanation:

4

Find the value of x and y

44- y

Answer 2

Answer:

sol= the opposite sides of a rectangle are of equal lengths. 2x+y+8=4xy. 2x-4x+y+y= -8 -2x+2y= -8 next step= -x+y= -4( dividing both the sides by 2). also,x+4=2y. x-2y= -4. adding equation (1) and (2) -x+y= -4...(1) x-2y= -4...(2). -y=-8. y= 8. substituting y=8 in equation (2) x-2 (8)= -4. x-16= -4. x= -4+16. x=12. the length of the rectangle=4x-y. =4(12)-8=48-8=40. the breath of the rectangle=2y=2x8=16. the area of a rectangle=lxb. =40x16= 640 sq units the perimeter of the rectangle= 2(l+b) 2(40+16). =2x56=112 units. ans= x=12; y=8. the area of the rectangle is 640 sq units and its perimeter is 112 units