Perimeter of a rectangle is 42 CM if length is 6 CM then breadth ​

15cm

Explanation:

the formula for calculating the perimeter of a rectangle is (length + breadth) ÷ 2. so, we can divide the given perimeter by 2 to find the sum of the length and breadth of the rectangle:

42 ÷ 2 = 21cm

now, since we know the length of the rectangle is 6cm, we can subtract it from the sum of the length and breadth:

21 - 6 = 15cm

thus, the breadth of the rectangle is 15cm.

i hope this helps! :D

my answer is$ 12

step-by-step explanation:

because 15 -2=12