The perimeter of an equilateral triangle is 3 times the length of the side of the triangle, i.e., p = 3 s.
Plot a graph taking s as 1, 2, 3, 4 and 5. From the graph, find the perimeter for s = 4.5 cm.

Question

The perimeter of an equilateral triangle is 3 times the length of
the side of the triangle, i e , p = 3 s
Plot a graph taking s as 1, 2, 3, 4 and 5 From the graph,
find the perimeter for s = 4 5 cm

Vijay Kumar Gupta · Accepted Answer

Dear Student,

Consider the following equation which gives the perimeter of an equilateral triangle
    p=3sFind the value of p when s=1, 2, 3, 4, 5
When s=1, p=3×1=3When s=2, p=3×2=6When s=3, p=3×3=9When s=4, p=3×4=12When s=5, p=3×5=15So, the ordered pairs are (1,3),  (2,6), (3,9), (4,12), (5,15)

To draw the graph of the equation, p=3s, plot the above ordered pairs on thecartesian plane and join them to get a straight line
The graph is shown below:
<img alt="" src=
"https://s3mn%20mnimgs%20com/img/shared/ck-files/ck_58b03fcd25756%20jpg"
style="width: 300px; height: 302px;">

To find the perimter when s=4
5, replace s with 4 5 in p=3s
   p=3×4 5     =13
5 cm

The perimeter of an equilateral triangle is 3 times the length of the side of the triangle, i.e., p = 3 s. Plot a graph taking s as 1, 2, 3, 4 and 5. From the graph, find the perimeter for s = 4.5 cm.

The perimeter of an equilateral triangle is 3 times the length of the side of the triangle, i.e., p = 3 s.
Plot a graph taking s as 1, 2, 3, 4 and 5. From the graph, find the perimeter for s = 4.5 cm.