如何找到平行四边形的周长?
平行四边形是具有四个边的四边形,其中对边彼此平行。它有四个顶点和 4 条边。在平行四边形中,对边的长度相等,对角的尺寸相等。它是一个二维图形,平行四边形的周长可以从测量的概念中计算出来。测量是数学的一个分支,它处理几何图形的长度、面积、周长、体积等测量。
平行四边形的周长定义为几何形状之外的总距离。平行四边形的周长是所有四个边的长度之和。在平行四边形中,对边的长度相等。所以周长是两条平行边之和的两倍。
如何找到平行四边形的周长?
The Perimeter of a Parallelogram can be determined by using the formula mentioned below:
Perimeter of Parallelogram with opposite length as a and b is given by,
Perimeter of Parallelogram, p = 2(a + b)
让我们看一些关于平行四边形周长的示例问题。
示例问题
问题1:边长分别为3cm和5cm的平行四边形的周长是多少?
解决方案:
Given,
Length of two sides of different length,
a = 3 cm
b = 5 cm
Perimeter of a parallelogram = 2(a + b)
= 2 (3+5)
= 2 × 8
= 16 cm
Hence perimeter of given parallelogram is 16 cm.
问题2:底长为4厘米,边长为8厘米的平行四边形的周长是多少。
解决方案:
Given,
Length of two sides of different length,
a = 4 cm
b = 8 cm
Perimeter of a parallelogram = 2(a + b)
= 2(4+8)
= 2×12
= 24 cm
Hence, perimeter of given parallelogram is 24 cm.
问题3:边长分别为2.5厘米、6厘米、2.5厘米和6厘米的平行四边形的周长是多少。
解决方案:
Given,
Length of all four sides are 2.5 cm, 6 cm, 2.5 cm and 6 c.m
a = 2.5 cm
b = 6 cm
Perimeter of a parallelogram = 2(a + b)
= 2(2.5 + 6)
= 2 × 8.5
= 17 cm
Hence perimeter of given parallelogram is 17 cm.
问题4:边长为5厘米和10厘米的平行四边形的周长是多少。
解决方案:
Given,
Length of two sides of different length,
a = 5 cm
b = 10 cm
Perimeter of a parallelogram= 2(a + b)
= 2(5+10)
= 2 × 15
= 30 cm
Hence perimeter of given parallelogram is 30 cm.
问题 5:底长为 3.3 厘米,另一边长为 6.6 厘米的平行四边形的周长是多少。
解决方案:
Given,
Length of two sides of different length,
a = 3.3 cm
b = 6.6 cm
Perimeter of a parallelogram = 2(a + b)
= 2(3.3+6.6)
= 2×9.9
= 19.8 cm
Hence perimeter of given parallelogram is 19.8 cm
问题 6:边长分别为 4 厘米、6 厘米、4 厘米和 6 厘米的平行四边形的周长是多少。
解决方案:
Given,
Length of all four sides are 4cm, 6cm, 4cm and 6cm
a = 4 cm
b = 6 cm
Perimeter of a parallelogram = 2(a + b)
= 2(4+6)
= 2×10
= 20 cm
Hence perimeter of given parallelogram is 20 cm.