Practice 3.2/3

Do these lines show the diameter, radius, or circumference  of the circle?

• circumference

• diameter

• radius

Do these lines show the diameter, radius, or circumference  of the circle?

• diameter

• circumference

• radius

Organize these options into the right categories

Groups:

(a) Circular

,

(b) Non-circular

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A small, test batch of lemonade used 1/4 cup of sugar added to 1 cup of water and 1/4 cup of lemon juice. After confirming it tasted good, a larger batch is going to be made with the same ratios using 10 cups of water. How much sugar should be added so that the large batch tastes the same as the test batch? ______ cups

The graph of a proportional relationship contains the point with coordinates (3, 12). What is the constant of proportionality of the relationship?

Match each line segment to its name. Which line segment is 15cm?

• radius

• line segment BA

• 15 cm

• line segment CD

• radius

• line segment DC

• radius

• line segment DA

• diameter

• line segment EA