IM 7.3.9 Practice: Applying Area of Circles

A circle with a 12-inch diameter is folded in half and then folded in half again. What is the area of the resulting shape?

Find the area of the shaded region. Express your answer in terms of π.

The face of a clock has a circumference of 63 in. What is the area of the face of the clock?

Which of these pairs of quantities are proportional to each other?

Radius and diameter of a circle Diameter and circumference of a circle Diameter and area of a circle Radius and circumference of a circle Radius and area of a circle

For the quantities above that you selected, what is the constant of proportionality for each?

Find the area of this shape in two different ways. Show your reasoning.

Elena and Jada both read at a constant rate, but Elena reads more slowly. For every 4 pages that Elena can read, Jada can read 5. Complete the table.

Here is an equation for the table: [math]j=1.25e[/math]. What does the 1.25 mean?

Write an equation for this relationship that starts [math]e=[/math]....

Information: IM 7.3.9 Practice: Applying Area of Circles