Question

A piece of wire is 12s cm long.what will be the length of the side,if it is formed as

Answer 1

Answer:i) As we know in an equilateral triangle all the sides are equal . So , the length of each side = 12/3 = 4 cm.

ii) As we know in a square all the sides are equal . Hence the length of each side of square = 12/4 = 3 cm.

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Answer 2

Answer:

Solution:-

The string length is the perimeter of the shape.

∴ For each case, perimeter=30cm

(i) Square

A square has all the side equal.

Perimeter=4×(side of square)

∴side of square=4perimeter=430=7.5cm

Hence, length of each side if the string is used to form a square will be 7.5 cm.

(ii) Equilateral triangle

An equilateral triangle has three equal sides.

Perimeter=3×(side)

∴side=3perimeter=330=10cm

Hence, length of each side if the string is used to form an equilateral triangle will be 10 cm.

(iii) Regular hexagon

A regular hexagon has six equal sides.

Perimeter=6×(side)

∴side=6perimeter=630=5cm

Hence, length of each side if the string is used to form a regular hexagon will be 5 cm.