7th grade Chapter 9 Formula Practice

Name the pictured part of the circle.

• Diameter

• Sector

• Radius

• Central Angle

• Arc

Name the pictured part of the circle.

• Diameter

• Sector

• Radius

• Central Angle

• Arc

What is a straight line that goes through the center of a circle from side to opposite side?

• Diameter

• Circumference

• Radius

• Center

What is a straight line that goes through the center of a circle from side to opposite side?

• Diameter

• Circumference

• Radius

• Center

Which of the following represents the formula for the circumference of a circle?

Which of the following represents the formula for the circumference of a circle?

Which of the following formulas is used to find the area of a triangle?

• A = πr²

• A = l⋅w

• A = (b⋅h)/2

  or

  A= 1/2 bh

• A = 2πr

Which of the following formulas is used to find the area of a triangle?

• A = πr²

• A = l⋅w

• A = (b⋅h)/2

  or

  A= 1/2 bh

• A = 2πr

Which of the following formulas is used to find the area of a circle?

• A = πr²

• A = l⋅w

• A = (b⋅h)/2

• A = 2πr

Which of the following formulas is used to find the area of a circle?

• A = πr²

• A = l⋅w

• A = (b⋅h)/2

• A = 2πr