Question

If there are 9 triangles, will the perimeters of the triangles follow any pattern? If so, write the pattern?

Answer 1

Answer:

the perimeter will be 3 cm, 6 cm, 9 cm, 12 cm .....

they are multiples of 3 or increasing with a difference 3

Answer 2

Given: 9 equilateral  triangles of sides 1cm, 2cm, 3cm, ...., 9cm.

To find: the pattern in the perimeters of the triangles.

Step-by-step explanation:

Step 1 of 1

The perimeter of an equilateral triangle is calculated by the formula $3*side$.

The perimeter of the eq. triangle having side 1cm is $3*1=3cm$.

The perimeter of the eq. triangle having side 2cm is $3*2=6cm$.

The perimeter of the eq. triangle having side 3cm is $3*3=9cm$.

The perimeter of the eq. triangle having side 4cm is $3*4=12cm$.

The perimeter of the eq. triangle having side 5cm is $3*5=15cm$.

The perimeter of the eq. triangle having side 6cm is $3*6=18cm$.

The perimeter of the eq. triangle having side 7cm is $3*7=21cm$.

The perimeter of the eq. triangle having side 8cm is $3*8=24cm$.

The perimeter of the eq. triangle having side 9cm is $3*9=27cm$.

THE PERIMETERS OF THE 9 TRIANGLES IS 3, 6, 9, 12, 15, 18, 21, 24, 27. THE PATTERN IS $3*n$.