Sphere and octahedron

Argomento:Sfera

В благодарную память о uStas'е http://tube.geogebra.org/ustas Given a ball of radius 3. Line segments KK_1, MM_1, NN_1 are three mutually perpendicular diameters. Find the angle and distance between lines KM and NK_1.

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What Do You See? (2)
Parabolas, Lines and Nomograms
גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
What Do You See?
Congruent Figures

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Rectangular Sum Approximation & the Integral
'between-ness' in multiplication/division
The Hyperbola Answer 1b
Para 1-8 in 4-5
module 16 HW

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Radici
Vettori 3D (tridimensionali)
Volume
Equazione differenziale
Ortocentro