Geometry - Circle Area - Intro

50 Topics, 4 Skills

Circle from Radius

Topic 1

Pi - Greek Letter to Number

Topic 2

Pi - Circle Ratio to Number

Topic 3

Pi - Definition to Name - First Time

Topic 4

Pi - Greek Letter to Circle Ratio

Topic 5

Pi - Number to Circle Ratio

Topic 6

Parts of a Circle

Topic 7

Circles - Find Diameter from Radius

Topic 8

Circles - Find Radius from Diameter

Topic 9

Circle - Radius to Equation

Topic 10

Circle - Equation to Radius

Topic 11

Circle - Radius to Equation - Squared Values

Topic 12

Circle - Equation to Radius - Squared Values

Topic 13

Circle - Diameter to Equation

Topic 14

Circle - Equation to Diameter

Topic 15

Circle - Diameter to Equation - Squared Values

Topic 16

Circle - Equation to Diameter - Squared Values

Topic 17

Circles - Find Diameter from Radius

Topic 18

Circles - Find Radius from Diameter

Topic 19

Circles - Find Radius from Diameter

Topic 20

Multiply by Pi - Approximation from Number

Topic 21

Multiply by Pi - Approximation from Number

Topic 22

Multiply by Pi - Approximation

Topic 23

Multiply by Pi - Approximation

Topic 24

Multiply by Pi - Approximation

Topic 25

Circle from Radius (with hint and calculator)

Topic 26

Circle from Radius (with hint and calculator)

Topic 27

Circle from Radius (with calculator)

Topic 28

Circle from Radius (with calculator)

Topic 29

Circle from Diameter (with hint and calculator)

Topic 30

Circle from Radius

Topic 31

Circles - Rule to Find Diameter from Radius - Simple

Topic 32

Circle from Diameter (with hint and calculator)

Topic 33

Circles - Rule to Find Radius from Diameter - Simple

Topic 34

Circle from Diameter (with calculator)

Topic 35

Circle from Diameter (with calculator)

Topic 36

Circle (with hint and calculator)

Topic 37

Circle from Diameter

Topic 38

Circle from Diameter

Topic 39

Circle (with hint and calculator)

Topic 40

Circle (with calculator)

Topic 41

Circle (with calculator)

Topic 42

Circle

Topic 43

Circle

Topic 44

Circle from Diameter - To Pi Value

Topic 45

Circle from Radius - To Pi Value

Topic 46

Circle from Diameter - To Pi Value

Topic 47

Circle from Radius - To Pi Value

Topic 48

Circle - To Pi Value

Topic 49

Circle - To Pi Value

Topic 50

Multiply by Pi - Approximation (Level 3)

Topic 25

This math topic focuses on practicing the approximation of multiplying various numbers by Pi (π), an essential skill for understanding circle circumferences in geometry. It involves calculating and identifying the correct approximation of results such as 8 x π, 6 x π, and so forth, with multiple-choice answers provided for each question. This activity is suitable for enhancing mathematical skills related to geometry, specifically concerning the properties and measurements of circles.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

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Multiply by Pi - Approximation

Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.


Approximate this number multiplied by Pi (π)

9 x π