8.1 Area and Circumference

Match the following

• Secant

• 
• Tangent

• 
• Diameter

• 
• Chord

• 
• Radius

• 

Tags

CCSS.HSG.C.A.1

CCSS.HSG.C.A.2

CCSS.HSG.C.A.3

Match the following. The arrow is pointed at what part of the circle.

• Central Angle

• 
• Inscribed Angle

• 
• Intercepted Arc

• 

Tags

CCSS.HSG.C.A.2

CCSS.HSG.C.A.3

Match the following.

• Major Arc

• 
• Minor Arc

• 
• Semicircle

• 

Tags

CCSS.HSG.C.B.5

Jacob is painting a circular picture on his wall.  If the painting has a diameter of 4 ft, how much paint will he need to cover the inside of the circle?  Is this question asking you to find the area, circumference, or neither?

• area
• circumference
• neither

Tags

CCSS.7.G.B.4

What is the area formula for a circle?

• A = πr²

• A = 2πr

• A = √π

Tags

CCSS.7.G.B.4

Find the area of the circle below.

• 8.76 cm²

• 18.52 cm²

• 21.90 cm²

• 28.26 cm²

Tags

CCSS.7.G.B.4

A clock face has a diameter of 10 inches. What is the approximate area of the clock face in square inches?

• 314 in²

• 31.4 in²

• 7.85 in²

• 78.5 in²

Tags

CCSS.7.G.B.4

Shring's dining room table is round and has a radius of 4.5 feet. What is the tabletop's area?

• 63.585 ft²
• 68.345 ft²
• 64.585 ft²
• 61.345 ft²

Tags

CCSS.7.G.B.4

What does "circumference" mean?

• Space a circle takes up

• Distance around a circle

• Line from one side of a circle to another

The Jones family wants to enclose their circular garden with a fence. What is the minimum length of fencing they need to buy?

• 56.25 ft

• 246.2 ft

• 365.56 ft

• 392.5 ft

Tags

CCSS.7.G.B.4