Back to Know the formulas for the area and circumference of a circle and use them to solve problems — Problem 1 · Task Set 14
Area and Circumference of Circles
Show your work. For exact answers, leave in terms of π. For approximate answers, use π ≈ 3.14 unless told otherwise.
Grade 7·21 problems·~45 min·Common Core Math - Grade 7·standard·7-g-b-4
Work through problems with immediate feedback
A
Recall / Warm-Up
1.
The diagram shows a circle with center O. The full width of the circle (the diameter) is labeled 14 cm. What is the radius of this circle?