7th-Unit 3 (Measuring Circles)

Select the statements that are true about circles. (2 options)

• A circle is made out of all the points that are the same distance from a given point.

• A circle has no sides or angles, so it is not a polygon.

• A circle cannot be measured.

• A circle is a 2 sided shape.

What is the formula for the AREA OF A CIRCLE?

• C=2πr

• A=πd

• A=2d

• A= πr²

_______ is a line segment that goes from one edge of a circle to the other and passes through the center.

• Diameter

• Circumference

• Radius

• Pi

_______ is the Constant of Proportionality between the circumference and diameter of any circle.

• Diameter

• Circumference

• Radius

• Pi

_______ a line segment that goes from the center to the edge of a circle. It measures the same no matter where you draw it on the circle.

• Diameter

• Circumference

• Radius

• Pi

_______ is the distance around the circle and the perimeter of a circle.

• Diameter

• Circumference

• Radius

• Pi

In a proportional relationship, the quantities (entries in the table) have the same ____________.

• Pi

• Circumference

• Constant of Proportionality

• Radius

In a proportional relationship, the values for one quantity are each multiplied by the ____ ______ to get the values for the other quantity.

• Pi

• Same Number

• Slope

• Radius

I know a relationship is proportional when looking at a graph because the line will pass through the______.

• Number 7

• Number 1

• Orange

• Origin

A circle's radius is 8 cm, what is the diameter?

• 2cm

• 4cm

• 16in

• 16cm