Question

1) Знайти периметр прямокутника зі стороною 3см 2см . Накресліть відрізок який дорівнює периметру прямокутника . Позначить його буквами. 2) У трьох однакових коробках 80 олівців .У двох менших однакових коробках олівців стільки в одній великій. Скільки олівців у меншій коробці?як записати короткий запис

Answer 1

Периметр прямокутника 10 см
відповідно треба креслити відрізок довжиною 10 см 

Answer 2

Perimeter of a Rectangle

To find the perimeter of a rectangle, you need to add up the lengths of all its sides. In this case, the rectangle has sides measuring 3 cm and 2 cm. To calculate the perimeter, you can use the formula:

Perimeter = 2 * (Length + Width)

Substituting the given values, we have:

Perimeter = 2 * (3 cm + 2 cm)

Simplifying the equation, we get:

Perimeter = 2 * 5 cm = 10 cm

So, the perimeter of the rectangle is 10 cm.

To represent the perimeter of the rectangle on a diagram, you can draw a line segment that is 10 cm long. Let's label this line segment as "AB".


Number of Pencils in the Smaller Box

In this problem, we are given three identical boxes containing a total of 80 pencils. We also know that the number of pencils in two smaller identical boxes is the same as the number of pencils in one larger box. We need to find the number of pencils in the smaller box.

Let's assume the number of pencils in the smaller box is "x". Since the two smaller boxes have the same number of pencils as the larger box, we can set up the following equation:

2x = 80

To solve for "x", we divide both sides of the equation by 2:

x = 80 / 2 = 40

Therefore, there are 40 pencils in the smaller box.

To represent this in a concise form, we can write:

Number of pencils in the smaller box = 40

I hope this helps! Let me know if you have any further questions.