Radius & Diameter
Angles
Circumference
Area
Vocabulary
100

The diameter is 10. Find the radius.

What is 5?

100

∠1 & ∠2 are complementary.

m∠1=52°

Find the measure of ∠2.

What is 38?

100

The diameter of the circle is 2. Find the circumference.

What is 6.28?

100

The radius of the circle is 3. Find the area.

What is 28.26?

100

Distance across the circle.

What is the diameter.

200

The radius of the circle is 20. Find the diameter.

40

200

∠1= x+3    ∠2= 49°

∠1 & ∠2 are supplementary.

Find the value of x.

128


200

The diameter of the circle is 10. Find the circumference.

What is 31.4?

200

The radius of the circle is 6. Find the area.

What is 113.04?

200

Opposite angles formed by intersecting lines and have the same measure.

What are vertical angles?

300

The circumference of the circle is 113.04. Find the radius.

What is 18?

300

Angles A and B are supplementary and m∠A = 57.5°, find m∠B.

122.5

300

The radius of the circle is 3.5. Find the circumference.

What is 21.98?

300

The diameter of the semi-circle is 20. Find the area.

What is 157?

300

Angles that share a common side and vertex. They are against each other.

What are adjacent angles?

400

The circumference of the circle is 615.44. Find the diameter.

196

400

∠1= 3x ∠2= 42

These angles are vertical.

Find the value of x.

14

400

The radius of the circle is 25. Find the circumference.

What is 157?

400

The diameter of the circle is 80. Find the area.

What is 5024?

400

The distance from the center of the circle to any point on its curved edge.

What is the radius?

500

The circumference of the circle is 254.34. Find the radius.

40.5

500

∠1= 2x+22 ∠2=2x+4

These angles are supplementary.

Find the measure of ∠1 & ∠2.

38.5

500

The circumference of the circle is 1661.06. Find the radius.

264.5

500

The circumference of the circle is 18.84. Find the area.

What is 28.26?

500

Distance around the outside of the circle.

What is circumference?

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