Plane and Solid Geometry

AABC ABCD altitude angles are equal apothem base bisector bisects called chord circumference circumscribed coincide congruent construct COROLLARY corresponding sides cube diagonal diameter dihedral angles distance divide draw equiangular equidistant equilateral triangle equivalent EXERCISE exterior angle face angles figure Find the area Find the locus Find the volume frustum given circle given line given point Given the triangle greater hypotenuse intersecting isosceles triangle lateral area lune measured by arc mid-point number of sides parallel lines parallelogram perimeter perpendicular plane geometry plane MN polyhedral angle polyhedron prism Proof proportional prove quadrilateral radii radius ratio rectangle rectangular parallelepiped regular polygon regular pyramid right angles right triangle secant segments slant height sphere spherical polygon spherical triangle square straight angle straight line surface tangent THEOREM triangle ABC trihedral vertex vertices