Find the sum of the sides A and B of a rectangle if the perimeter is 188 cm.

The perimeter is the sum of the lengths of all sides.
Rectangle has equal parallel sides.
So Perimeter = 2 * A + 2 * B
It is known that the perimeter = 188cm
Respectively
2 * A + 2 * B = 188 (cm)
We solve this equation
2 * (A + B) = 188 (cm)
A + B = 188/2 (cm)
A + B = 94 (cm)
Answer: The sum of sides A and B of a rectangle with a perimeter of 188 cm will be equal to 94 cm