# One of the sides of the quadrangle is 512 cm, the second side is 3 times smaller than the first, and the third

September 28, 2021 | education

| **One of the sides of the quadrangle is 512 cm, the second side is 3 times smaller than the first, and the third is 3 cm more than the second and 15 cm less than the fourth. Calculate the perimeter of the quadrilateral.**

1) Determine the value of the length of the second side of the quadrangle.

Divide the first side by 3.

Will:

512/3 = 170 2/3 cm.

2) Find how many centimeters is the length of the third side.

We add another 3 cm to the length of the 2 sides.

Will:

170 2/3 + 3 = 173 2/3 cm.

3) Find the fourth side.

We subtract 15 cm from the length of the third side.

We get:

173 2/3 – 15 = 158 2/3 cm.

4) Find the perimeter of the quadrangle.

To do this, we summarize all the sides.

512 + 170 2/3 + 173 2/3 + 158 2/3 = 1015 cm.

Answer:

1015 cm.

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.