8.1
Exercises
Help with
Bigideos
Vocabulary and Concept Check
1. VOCABULARY What is the relationship between the radius and the diameter
of a circle?
2. WHICH ONE DOESN'T BELONG? Which phrase does not belong with the other
three? Explain your reasoning
the distance around a circle times twice the radius
Umes the diameter
the distance from the center to any point on the circle
Practice and Problem Solving
Find the radius of the button.
28 mm
15 cm
YOUR
VOTE
COUNTS
Find the diameter of the object.
0.8
for.
Find the circumference of the pizza. Use 3.14
39.
17 in
10 in
18 in
CuOSE TOOLS Choose a real-life circular object Explain why you might need to

Read michelle’s claim statement for a literary analysis essay about a nonfiction text. in his autobiography up from slavery, booker t. washington shows how the different settings, or places he lived, affected his life, work ethic, and beliefs. which quote from the text can she use as evidence to support her claim? a. “the early years of my life, which were spent in the little cabin, were not very different from those of thousands of other slaves.” b. “after some hours had passed, the head teacher said to me: ‘the adjoining recitation-room needs sweeping. take the broom and sweep it.’” c. “during my last year at hampton every minute of my time that was not occupied with my duties as janitor was devoted to hard study.” d. “after the coming of freedom there were two points upon which practically all the people on our place were agreed… that they must change their names, and that they must leave the old plantation for at least a few days or weeks in order that they might really feel sure that they were free.”