Question

find the perimeter of an equilateral triangle of side 45mm write your answer in cm​

Answer 1

Answer:

45mm×3=135mm

135/10=13.5cm

Answer 2

Step-by-step explanation:

Given :-

Side of an equilateral triangle is 45mm

To find:-

Find the Perimeter of the equilateral triangle in cm ?

Solution:-

Side of an equilateral triangle = 45 mm

Perimeter of an equilateral triangle =

3× length of the side units

=>3×45 mm

=>135 mm

Perimeter of the equilateral triangle = 135mm

We know that 1 cm = 10 mm

=>1 mm = 1/10 cm

=>135 mm = 135/10 cm

=>135 mm = 13.5 cm

Therefore, Perimeter = 13.5 cm

Answer:-

Perimeter of the given equilateral triangle is

135 mm or 13.5 cm

Used formula:-

• Perimeter of an equilateral triangle is 3×length of its side .