Question

4. A piece of string is 20 cm long. What will be the
length of each side if the string is used to form a
square?


plz answer fully ​

Answer 1

Answer:

5cm

Step-by-step explanation:

All sides of square are equal, so we need to diverse 20 into 4 equal parts

length of each side of square = 20/4 = 5cm

Answer 2

Answer:

5m

Step-by-step explanation:

A piece of string is 30 cm long. What will be the length of each side if the string is used to form: (a) a square? (b) an equilateral triangle? (c) a regular hexagon?

(a) perimeter a square = 4 × side of the square = 30 = 4 × side of the square ∴ Side of the square = 30/4 = 7.5 cm Side of the square = 7.5 cm.

(b) perimeter an equilateral triangle = 3 × side of the ∆ 30 = 3 × side of the ∆ Side of the triangle = 30/3 = 10 cm Side of the equilateral ∆ = 10 cm.

(c) perimeter of a regular hexagon = 6 × side of the regular hexagon 30 = 6 × side Side = 30/6 = 5 cm Side of the regular hexagon = 5 cm.