The perimeter of a rectangle is72cm. It's breath is 8cm. Find its length
72=2*8+2L
L=36-8
2(l+b) =72 .2 (l +8)=72. 2l + 16 =72 . 2l =56 . L =28
To find the length of a rectangle, we can use the formula for the perimeter of a rectangle:
Perimeter = 2 * (Length + Width)
Given that the breath (width) of the rectangle is 8 cm and the perimeter is 72 cm, we can substitute those values into the formula:
72 = 2 * (Length + 8)
Now, let's solve for the length (L) by isolating the variable:
Divide both sides of the equation by 2:
72/2 = (Length + 8)
36 = Length + 8
Subtract 8 from both sides of the equation:
36 - 8 = Length
28 = Length
Therefore, the length of the rectangle is 28 cm.