Answered

#1: Which term describes the part of the area of a circle formed by an arc and two radii which intersect the endpoints of the arc?

ADiameter of a circle
BSector of a circle
CArea of a circle
DCircumference of a circle

#2: What is the area of a 60 ° sector of a circle with area 42 pie m^2?

A21 pi m^2
B7 pi m^2
C6 pi m^2
D14 pi m^2

#3: What is the approximate area of a circle whose radius is 3 m long? (Use 3.14 for pi)

A28 m^2
B9 m^2
C19 m^2
D3 m^2

#4 and 5 will be next, so stick around! :-)

Verified Answer :

  1. sector. If you draw it out, it is like a slice of a pie. When you think sector, think section.

    2. A 60 degree sector is 1/6 of a circle which is 360 degrees. So the area is 1/6 42 = 7, so B

    3. area = pi     r^2 = 3.14 * 3^2 = 28.27, which is closest to A

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