Illustrative Math Grade 7 Unit 3 Review

Front

What is the formula for the area of a circle?

Back

Area = π × r², where r is the radius of the circle.

Tags

CCSS.7.G.B.4

Front

If the circumference of a circle is known, how can you find the diameter?

Back

Diameter = Circumference / π.

Tags

CCSS.7.G.B.4

Front

What is the relationship between diameter and radius?

Back

The diameter is twice the radius (Diameter = 2 × Radius).

Tags

CCSS.7.G.B.4

Front

How do you calculate the circumference of a circle?

Back

Circumference = π × Diameter.

Tags

CCSS.7.G.B.4

Front

What does it mean for two quantities to be proportional?

Back

Two quantities are proportional if they maintain a constant ratio.

Tags

CCSS.7.RP.A.2A

Front

If a bike tire has a diameter of 20 inches, what is its circumference?

Back

Circumference = π × 20 inches ≈ 62.83 inches.

Tags

CCSS.7.G.B.4

Front

How do you convert the number of rotations of a wheel into distance traveled?

Back

Distance = Number of Rotations × Circumference of the wheel.

Tags

CCSS.7.G.B.4

Front

What is the area of a circle with a diameter of 37 inches?

Back

Area = π × (18.5 inches)² ≈ 1,074.6 inches squared.

Tags

CCSS.7.G.B.4

Front

How can you estimate the area of a circle using its circumference?

Back

Area ≈ (Circumference / π)² / 4.

Tags

CCSS.7.G.B.4

Front

What is the approximate value of π?

Back

π is approximately 3.14.

Tags

CCSS.HSG.GMD.A.1