Common Core
7.G.B.4
4 lessons teach this standard. Every lesson is interactive, and every one prints as a worksheet with a separate answer key.
Grade 7 Math · Chapter 7 · Lesson 1
Where π actually comes from.
Grade 7 Math · Chapter 7 · Lesson 2
A different question, with different units.
Grade 7 Math · Chapter 7 · Lesson 3
Why the radius is squared.