Question

Darren bends a piece of wire using a circular disc to make the
shape as shown.
A. How long does the piece of wire need to be
to make the shape? Explain.
22 cm
100 cm
B. Construct Arguments What information do
you think is needed to find part of the
circumference of a circle? Justify your answer.

Answer 1

Answer: the wire is 134.54 because you add 100 and the other part of the wire which is 34.54. You find this by finding a quarter of the circumference. The center of the circle is needed to find part of the circumference.

Answer 2

The piece of wire that needs to be to make the shaped wire is 134.54.

We have given that,

Darren bends a piece of wire using a circular disc to make the

shape as shown.

We have to determine what information is needed to find part of the circumference of a circle

What is the circumference of a circle?

The circumference is the perimeter of a circle or ellipse. That is, the circumference would be the arc length of the circle as if it were opened up and straightened out to a line segment. More generally, the perimeter is the curve length around any closed figure.

The wire is 134.54

because you add 100 and the other part of the wire is 34.54.

You find this by finding a quarter of the circumference.

The center of the circle is needed to find part of the circumference.

The piece of wire that needs to be to make the shaped wire is 134.54.

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