Math Problem Statement

مساحت این قسمت رو بدست بیار و کامل توضیح بده (شش ضلعی منتظم) in english

مساحت این قسمت رو بدست بیار و کامل توضیح بده (شش ضلعی منتظم)

Solution

To find the area of the shaded orange region in this regular hexagon, let's analyze the shape step-by-step. Here's a complete breakdown:

Step 1: Understanding the Structure

  • The figure shows a regular hexagon divided into six equilateral triangles.
  • In a regular hexagon, if the side length is ss, the area of each equilateral triangle is: Area of one triangle=34s2\text{Area of one triangle} = \frac{\sqrt{3}}{4} s^2
  • Since there are six such triangles, the total area of the hexagon is: Area of hexagon=6×34s2=332s2\text{Area of hexagon} = 6 \times \frac{\sqrt{3}}{4} s^2 = \frac{3\sqrt{3}}{2} s^2

Step 2: Identifying the Side Length

  • The labeled length "3" represents the side length of the hexagon.

Step 3: Calculating the Area of the Hexagon

Using s=3s = 3: Area of hexagon=332×32=332×9=2732\text{Area of hexagon} = \frac{3\sqrt{3}}{2} \times 3^2 = \frac{3\sqrt{3}}{2} \times 9 = \frac{27\sqrt{3}}{2}

Step 4: Area of the Shaded Region

The shaded region is one of the six equilateral triangles inside the hexagon. Since each triangle contributes equally to the total area, we can find the area of one triangle by dividing the hexagon’s area by 6: Area of shaded triangle=16×2732=27312=934\text{Area of shaded triangle} = \frac{1}{6} \times \frac{27\sqrt{3}}{2} = \frac{27\sqrt{3}}{12} = \frac{9\sqrt{3}}{4}

Final Answer

The area of the shaded region is: 9343.897\frac{9\sqrt{3}}{4} \approx 3.897

Would you like more details or have any questions about the steps?

Related Questions

  1. What is the perimeter of this hexagon?
  2. How does changing the side length affect the area of the shaded region?
  3. What is the formula for the area of an equilateral triangle?
  4. Can we find the area of a similar shaded region in a pentagon?
  5. How would the area change if the hexagon were larger?

Tip

Remember, a regular hexagon can always be divided into six equilateral triangles, which simplifies area calculations!

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Math Problem Analysis

Mathematical Concepts

Geometry
Area Calculation
Regular Hexagon
Equilateral Triangle

Formulas

Area of an equilateral triangle = (√3 / 4) × s²
Area of a regular hexagon = 6 × (√3 / 4) × s²

Theorems

Properties of Regular Hexagon
Area of Equilateral Triangle

Suitable Grade Level

Grades 9-10