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adjacent altitude Analysis angle approach auxiliary axis base bisect bisector called centre chord circle circumference circumscribed coincide common cone construct convex corresponding curve cylinder Definitions described determine diagonals diameter difference direction distance draw drawn edges element ellipse equal equivalent established Exercises expression extremities faces fall figure Find the locus fixed formed Geometry given circle given point greater half Hence included increase inscribed interior intersect joining length less limit lines be drawn measured middle point move NOTE number of sides oblique opposite parallel parallelogram pass perimeter perpendicular placed plane polygon portion position prism PROBLEM projection pyramid radius ratio rectangle regular polygon relations remain represent rotation secant segment separated Show sides similar space sphere spherical triangle square straight line student suggests surface tangent THEOREM third unit vertex vertices volume
Page 25 - If two triangles have the three sides of the one equal to the three sides of the other, each to each, the triangles are congruent.
Page 17 - The sum of two sides of a triangle is greater than the third side, and their difference is less than the third side.