### ‘ι κίμε οι ςώόστερ -”ΐμτανγ ξώιτιξόρ

Ρεμ εμτοπΏσαλε ξώιτιξίρ στιρ σθμόηειρ τοποηεσΏερ.

### Ργλοωικό αποσπήσλατα

”εκΏδα 63 - The square of the hypothenuse is equal to the sum of the squares of the other two sides ; as, 5033 402+302.
”εκΏδα 7 - 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.
”εκΏδα 151 - THE sphere is a solid terminated by a curve surface, all the points of which are equally distant from a point within, called the centre.
”εκΏδα 76 - The perimeters of two regular polygons of the same number of sides, are to each other as their homologous sides, and their areas are to each other as the squares of those sides (Prop.
”εκΏδα 25 - Two equal chords are equally distant from the centre ; and of two unequal chords, the less is at the greater distance from the centre.
”εκΏδα 52 - The sum of the squares on the sides of a parallelogram is equal to the sum of the squares on the diagonals.
”εκΏδα 160 - If two triangles have two sides and the inchtded angle of the one respectively equal to two sides and the included angle of the other, the two triangles are equal in all respects.
”εκΏδα 203 - In every triangle the sum of the three angles is equal to two right angles.
”εκΏδα 162 - In any spherical triangle, the greater side is opposite the greater angle ; and conversely, the greater angle is opposite the greater side.
”εκΏδα 141 - If a pyramid is cut by a plane parallel to its base, the...