正六边形公式
六边形是有六个边的多边形。正六边形、不规则六边形和凹六边形是六边形的三种不同变体。如果六边形的所有边都相等并且所有角度都相同,则该六边形称为正六边形。正五边形有五个相等的边,而正八边形有八个相等的边。当不满足这些先决条件时,多边形可以呈现出各种不规则形状。当六个等边三角形并排放置时,形成一个正六边形。因此,正六边形的面积是同一个三角形的六倍。
正六边形的性质
- 它有六个相等的边和六个相同的角。
- 它有六个顶点。
- 内角之和等于 720°。
- 内角为 120°,外角为 60°。
- 它由六个等边三角形组成。
- 在一个正六边形内,可以画出 9 条对角线。
- 所有相对的边都是平行的。
正六边形公式
正六边形的面积和正六边形的周长有特定的公式。我们来看看正六边形公式,
正六边形面积
它被定义为在六边形边界内占据的区域。
Area of an Hexagon = {(3√3a2 )/2}
Here ‘a’ represents the side of hexagon.
正六边形的周长
六边形的周长定义为六边形边界的长度。因此,周长将等于所有边长的总和。六边形的周长可以使用以下公式计算,
Perimeter = 6 × side length of hexagon
P = 6s
示例问题
问题 1:计算边长为 5 厘米的正六边形的面积和周长。
解决方案:
Given, side of the hexagon = 5 cm
Area of an Hexagon = {(3√3a2 )/2}
= {[(3√3)52 ]/ 2}
= (3√3 × 25)/2
= 75√3 / 2
= (75 × 1.7320)/2
= 64.95 sq.cm
Perimeter of the hexagon = 6s
= 6 × 5
= 30 cm
So the area of hexagon is 64.95 sq.cm and perimeter of hexagon is 30 cm.
问题2:如果六边形板的周长是25厘米,求板的面积?
解决方案:
Given, perimeter of the board = 25 cm
Perimeter of an Hexagon = 6s
25 = 6s
s = 25/6
= 4.166
Area of an Hexagon = {(3√3a2 )/2}
= {[3√3(4.166)2 ]/2}
= {[(3√3) 17.3555 ]/2}
= (3 × 1.7320 × 17.3555) /2
= 90.179 / 2
= 45.089 cm2.
问题 3:六角板的周长等于 18 英寸。找到它的区域。
解决方案:
To Find: Area of the hexagon.
Given: Perimeter of hexagonal board = 18 inches.
The perimeter of hexagon = 6s
18 = 6s
s = 18/6
s = 3
Side = 3 inches.
Now Use the hexagon formula for Area,
Area of an Hexagon = {(3√3a2 )/2}
= {(3√3 × 32 )/2}
= {(3√3 × 9 ) /2}
= {3 × 1.7320 × 9} / 2
= 46.764 / 2
= 23.382 sq. inches
问题 4:确定周长为 42 个单位的正六边形的边长。
解决方案:
To Find: Side length of hexagon
Given: Perimeter = 42 units.
Using the hexagon formula for perimeter
Perimeter of Regular hexagon = 6s
42 = 6s
Side = 42/6
Side = 7
So, the side length of the regular hexagon whose perimeter is 42 units is 7 unit.
问题 5:如果周长为 60 厘米,则计算正六边形的边长。
解决方案:
Given, perimeter = 60 cm
Using the hexagon formula for perimeter
Perimeter of Regular hexagon = 6s
Therefore, 60 = 6s
Or, s = 60/6
= 10 cm
So, the length of the side of a regular hexagon whose perimeter 60 cm is 10 cm.
问题 6:求六边形的面积和周长,如果它的所有边的长度都等于 7 厘米。
解决方案:
To Find: Area of the hexagon and Perimeter of hexagon.
Given: Side = 7cm
The perimeter of hexagon = 6s
= 6 × 7
= 42 cm
Now Use the hexagon formula for Area,
Area of an Hexagon = {(3√3a2 )/2}
= {(3√3 × 72 )/2}
= {(3√3 × 49 ) /2}
= {3 × 1.7320 × 49} / 2
= 254.60 / 2
= 127.302 sq. cm