Find the length of the rectangle, if it is known that it is 3 cm longer than the width, and the width is 4 cm. Draw this rectangle and calculate its perimeter and area.
In the problem, the value of the width of the rectangle is known and it is said by how much the length is longer than the width. Let’s find what the length of the rectangle is equal to:
4 + 3 = 7 cm.
In the problem, the value of the length and width of the rectangle is known. The perimeter is the sum of all the sides of the shape. Find the perimeter of the rectangle:
P = 4 + 7 + 4 + 7 = 11 + 11 = 22 cm.
In the problem, the value of the length and width of the rectangle is known. Let’s find the value of the area of the rectangle:
S = 4 * 7 = 28 cm².
Answer: the perimeter of the rectangle is 22 cm, the area of the rectangle is 28 cm², the sides of the rectangle are 7 cm and 4 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.