Circles Definitions
Finding Diameter & Radius
Finding Circumference
Area of Circles
Random Trivia
100

The distance from the center to any point of a circle is called what? 

The Radius

100

Find the radius

r=10feet

100

Find the circumference of the circle. Keep in terms of pi

C=12pi cm

100

Find the area of the circle. Keep in terms of pi. 

A=49picm^2

100
What's the best way to not kill Nibbles? 

Answers may vary, but definitely don't trust Mrs. Warner with him

 

200

The distance across the circle through the center is called what?

The diameter

200

Find the diameter

d=1.6feet

200

Find the circumference of the pizza. Use 3.14 for pi. 

C=31.4 inches

200

Find the area of the circle. Keep in terms of pi. 

A=169pi Inches^2

200

Who are the two "Li'ls" in 8th grade? 

Li'l Cebastian & Li'l Diego 


300

What is the formula for finding circumference of a circle? 

C=pid or C=2pir

300

Find the radius of the blue circle

r=11m

300

Find the circumference of the plate. Use 3.14 for pi. 

C=28.26  inches

300

Find the area of the circle. Use 3.14 for pi. 

A=314 Inches^2

300

Name the 7 continents

North America, South America, Europe, Africa, Asia, Australia, & Antartica 


400

What is the formula for finding area of a circle?

A=pir^2

400

The circumference of a circle is 20pi, what is the diameter?

d=20

400

Find the perimeter of the semicircle. Use 3.14 for pi. 

P=77.1 inches

400

Find the area of the circle. Use 3.14 for pi. 

A=3.14cm^2

400

DISNEY! Finish the lyrics: "You think the only people who are people, are the people _____ _____ _____ _____ _____ _____"

"Who look and think like you" 


500

What is the formula for finding the perimeter of a semicircle? 

A=(pid)/2+d

500

The circumference of a circle is 30pi, what is the radius? 

r=15

500

A wire is bent into 4 semicircles. How long is the wire? Use 3.14 for pi. 

200.96 cm

500

Find the area of the semicircle. Use 3.14 for pi. 

A=189.97cm^2

500

Jason Momoa plays what DC superhero? 

Aquaman 


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