warmup (11/22)

Front

What is the formula to find the circumference of a circle?

Back

Circumference = 2 × π × radius

Front

If a circle has a radius of 5 inches, what is its circumference?

Back

Circumference = 2 × π × 5 ≈ 31.4 inches

Front

What is the formula to find the area of a circle?

Back

Area = π × radius²

Front

If a circle has a radius of 3 inches, what is its area?

Back

Area = π × 3² ≈ 28.3 square inches

Front

What is the relationship between diameter and radius?

Back

Diameter = 2 × radius

Front

If the diameter of a circle is 10 inches, what is its radius?

Back

Radius = diameter / 2 = 10 / 2 = 5 inches

Front

What is the formula to find the diameter of a circle if you know the circumference?

Back

Diameter = Circumference / π

Front

If a circle has a circumference of 31.4 inches, what is its diameter?

Back

Diameter = 31.4 / π ≈ 10 inches

Front

What is the rate of work if Seth can bake 2/3 of a cake in 7/10 of an hour?

Back

Rate = (2/3) / (7/10) = 20/21 cakes per hour

Front

What does the slope of a line represent in a graph?

Back

The slope represents the rate of change of y with respect to x.