# The length of the rectangle is 80 cm and the perimeter is 2 meters 14 centimeters, write down the formulas

March 31, 2021 | education

| **The length of the rectangle is 80 cm and the perimeter is 2 meters 14 centimeters, write down the formulas and find out what the width of the area of the rectangle is.**

Let’s write down the formula for the perimeter of a rectangle, substitute the known data and find the width, then the area.

P = 2 * (a + b).

2 meters 14 centimeters = 2 * 100 + 14 = 214 (cm).

214 = 2 * (80 + b)

107 = 80 + b

b = 27 (cm) – width.

Find the area:

S = a * b = 80 * 27 = 2160 (cm²).

Answer: width 27 cm, area 2160 cm².

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.