What is the area of a rectangular glass sheet if its perimeter is 14 dm and its width is 2 dm?
| December 21, 2020 | education
The perimeter of a rectangle is the sum of the lengths of all sides, that is, a + a + b + b. We know one of the sides, Let’s make the equation:
a + a + 2 + 2 = 14
2a = 10
a = 5
The area of the rectangle is the product of the sides: a * b
4 * 5 = 20 (dm ^ 2)
Answer: 20dm ^ 2
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.
