In the parallelogram ABCD AB = 13cm BC = 24cm find the perimeter of ABCD.

In order to solve this problem quickly and not get confused, we will compose a short condition according to the text of the problem:
The figure is a parallelogram;
AB – 13 cm;
BC – 24 cm;
Perimeter -? cm;
Decision:
Let’s remember what a perimeter is:
The perimeter is the sum of the lengths of all sides.
A parallelogram, like a rectangle, has opposite sides equal, so the perimeter can be found using the following formula:
P = 2 * (a + b);
Substitute the quantities known from the condition and find the perimeter:
P = 2 * (13 + 24) = 2 * 37 = 74 cm:
Answer: 74 cm.