The length of one side of the triangle is 18cm, which is 6cm longer than the other side.

univerkov | September 17, 2021 | education

The length of one side of the triangle is 18cm, which is 6cm longer than the other side. Find the length of the third side of the triangle if its perimeter is 56cm.

Find the length of the second side of the triangle if it is six centimeters shorter than the first.
18 – 6 = 12 centimeters.
The perimeter is equal to the sum of the lengths of the sides of the triangle, and its value is 56 centimeters, which means that we will find the length of the unknown side if the other two are equal to 12 centimeters and 18 centimeters.
56 – 18 – 12 = 26 centimeters.
Answer: the third side is 26 centimeters.

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.