Other editions - View all
altitude angle equal angle formed angle-bisectors annexed diagram apothem bisector bisects central angle chord circumference congruent construct a triangle decagon diagonals diagram for Prop diameter Draw drawn equiangular equiangular polygon equilateral triangle exterior angle figure find a point Find the area Find the length Find the radius geometric given angle given circle given line given point given triangle HINT homologous sides hypotenuse inscribed intersecting isosceles triangle joining the mid-points LAOB line joining mean proportional median opposite sides parallelogram perimeter perpendicular perpendicular-bisector point equidistant PROBLEM produced PROPOSITION prove Proof Q. E. D. Ex quadrilateral ABCD radii ratio rectangle reflex angle regular polygon rhombus right angle right triangle secant segments similar polygons similar triangles straight angle straight line tangent THEOREM transform trapezoid triangle ABC triangle are equal vertex angle vertices
Page 82 - The straight line joining the middle points of two sides of a triangle is parallel to the third side, and equal to half of it.
Page 198 - In any triangle, the product of two sides is equal to the square of the bisector of the included angle plus the product of the segments of the third side.
Page 192 - In any triangle, the square of the side opposite an acute angle is equal to the sum of the squares of the other two sides diminished by twice the product of one of those sides and the projection of the other upon that side.
Page 208 - The area of a rectangle is equal to the product of its base and altitude. Given R a rectangle with base b and altitude a. To prove R = a X b.
Page 67 - If two sides of a triangle are unequal, the angles opposite are unequal, and the greater angle is opposite the greater side.
Page 183 - If two chords intersect in a circle, the product of the segments of one is equal to the product of the segments of the other.
Page 25 - Two triangles are congruent if two sides and the included angle of one are equal respectively to two sides and the included angle of the other.
Page 70 - If two triangles have two sides of one equal respectively to two sides of the other, but the included angle of the first triangle greater than the included angle of the second, then the third side of the first is greater than the third side of the second.