Answer:
24 cm
Step-by-step explanation:
the perimeter is the circumference, the way to go one time fully around the object.
now think, what distances do you have to go when walking around a rectangle ?
well, there are 2 times the length and 2 times the width or breadth. that's it.
P = 2×7 + 2×5 = 14 + 10 = 24 cm