First Nations Education Steering Committee (FNESC)



Circle unit KeyKEYKekuli Measurement12 post OptionRadius (using Pythagoras)3mDiameter(r x 2)6mDistance to P from Centre:(given)6mLength of entrance opening from circumference:1.52mWidth of entrance at opening:1.60mRadius of fire circle: Varies by student choice. Should be between 1-2.0 meters for optimal measuring ease of math.Radius of smoke hole: Varies by student choice, but is 2/3 of diameter of smoke holeIe. 1m diameter fire circle: 0.667m smoke holeIe. 1.5m diameter fire circle: 1m smoke holeIe. 2.0m diameter fire circle: 1.333m smoke holeDepth of seats on circumference:(chord theory, Pythagoras, subtract from radius) 0.86mCentral angle at entrance beams:30?Inscribed angle:15?Height of central support beams:Varies by student choice, but use Chord theory and Pythagoras.I.e. 1m diameter fire circle: 2.95m tall support beamsI.e. 1.5m diameter fire circle: 2.90m tall support beamsI.e. 2.0m diameter fire circle: 2.83m tall support beamsHeight of ceiling 2m from centre:2.24mHeight of entrance:Varies by student choice.If entrance is at 2.75m, height = 1.20mIf entrance is at 2.60m, height = 1.50mIf entrance is at 2.50m, height = 1.66m ................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download