What is the formula for the area of a sector in a circle?
Arc Length and Sector Area

Flashcard
•
Mathematics
•
10th Grade
•
Hard
Quizizz Content
FREE Resource
Student preview

15 questions
Show all answers
1.
FLASHCARD QUESTION
Front
Back
Area = (θ/360) * π * r², where θ is the angle in degrees and r is the radius.
2.
FLASHCARD QUESTION
Front
How do you calculate the arc length of a sector?
Back
Arc Length = (θ/360) * 2 * π * r, where θ is the angle in degrees and r is the radius.
3.
FLASHCARD QUESTION
Front
What is a sector in a circle?
Back
A sector is a portion of a circle enclosed by two radii and the arc between them.
4.
FLASHCARD QUESTION
Front
What is the relationship between the radius and the area of a sector?
Back
The area of a sector increases with the square of the radius.
5.
FLASHCARD QUESTION
Front
If a sector has an angle of 90°, what fraction of the circle does it represent?
Back
It represents 1/4 of the circle.
6.
FLASHCARD QUESTION
Front
What is the area of a sector with a radius of 8 in and an angle of 90°?
Back
Area = (90/360) * π * (8)² = 16π in².
7.
FLASHCARD QUESTION
Front
What is the circumference of a circle with a radius of 10 in?
Back
Circumference = 2 * π * r = 20π in.
Create a free account and access millions of resources
Similar Resources on Quizizz
15 questions
Area of sector flashcardziz

Flashcard
•
10th Grade
15 questions
Arc Length and Sector Area

Flashcard
•
10th Grade
15 questions
Arc Length and Area Sector

Flashcard
•
10th Grade
15 questions
Arc Length and Sector Area

Flashcard
•
10th Grade
15 questions
Arc Length and Sector Area

Flashcard
•
10th Grade
15 questions
CORRECTIONS - Circles TEST

Flashcard
•
10th Grade
15 questions
Flashcard - Circumference, Area, Arc Length, & Sector Area

Flashcard
•
10th Grade
15 questions
April 16th Flashcardziz Arc Length and Sector Area

Flashcard
•
10th Grade
Popular Resources on Quizizz
15 questions
Multiplication Facts

Quiz
•
4th Grade
25 questions
SS Combined Advisory Quiz

Quiz
•
6th - 8th Grade
40 questions
Week 4 Student In Class Practice Set

Quiz
•
9th - 12th Grade
40 questions
SOL: ILE DNA Tech, Gen, Evol 2025

Quiz
•
9th - 12th Grade
20 questions
NC Universities (R2H)

Quiz
•
9th - 12th Grade
15 questions
June Review Quiz

Quiz
•
Professional Development
20 questions
Congruent and Similar Triangles

Quiz
•
8th Grade
25 questions
Triangle Inequalities

Quiz
•
10th - 12th Grade