4. A piece of string is 30 cm long. What will be the length of each side if the string is used to form:​

Question

4. A piece of string is 30 cm long. What will be the length of each side if the string is used to form:​

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Ayla 4 weeks 2021-08-17T21:51:33+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-08-17T21:52:55+00:00

    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=

    4

    perimeter

    =

    4

    30

    =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=

    3

    perimeter

    =

    3

    30

    =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=

    6

    perimeter

    =

    6

    30

    =5cm

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

    0
    2021-08-17T21:53:31+00:00

    complete the question please.

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