Question

Make a table of length of the side of an equilateral triangle and its perimeter by taking four different lengths and draw the side-perimeter graph. From the graph, read the following:
(1) perimeter, when the side is 2.5 units.
(2) length of side, when perimeter is 10.5 units.​

Answer 1

Answer:

my maths isweak

Step-by-step explanation:

sorry I will not help you

Answer 2

A table of length of the side of an equilateral triangle and its perimeter by taking four different lengths is as follows.

An equilateral triangle is one that has all 3 sides of equal length ⇒ a=a=a

The perimeter of an equilateral triangle is 3 times the sides ⇒ P = 3a

Table:

Length of the side           Perimeter

2.5                                           7.5

5.5                                           16.5

7.5                                           22.5

10.5                                         31.5

The side-perimeter graph is attached below.

(1) perimeter, when the side is 2.5 units.

P = 3a

= 3 × 2.5

= 7.5 units

(2) length of side, when perimeter is 10.5 units.​

P = 3a

10.5 = 3a

a = 10.5 / 3 = 3.5 units