Question

Find the value of x if: a rectangle’s length is (x+4) cm, its breadth is (x+2) cm, and its perimeter is 20 cm.

Answer 1

Answer:

Perimeter = 2( length + breadth)

= 2 (x + 4 + x + 2)

= 2 ( 2x + 6 )

20 = 4 ( x + 3 )

5 = x + 3

2 = x

x= 2cm

Hope it helps u..

Answer 2

Answer:

x = 2.

Step-by-step explanation:

perimeter of rectangle = 2(l + b)

l = x+4

b = x+2

20 =2{(x+4) + (x+2)}

20 = 2 x 2x + 6

20/2 = 2x+6

10-6 = 2x

4/2 = x

2 = x.