Mensuration

12 feet 20 feet 40 cents ABCD Algebra Allowance for old altitude apothem area ABC centre chains chord circle whose diameter circular zone circumference College contained convex surface coördinates CPHL cylinder denote diagonals dihedral angle divided entire surface equal to one-half equation EXAMPLES faces find the area find the volume frustum Geom Geometry GMNF h₂ Half morocco hence hypothenuse Icosahedron included angle linear units lower base Mailing Price Mathe Mathematics matics miles morocco NFMH number of degrees number of linear number of radians Octahedron one-half the product PABC parallel parallelogram perpendicular Phillips Exeter Academy plane prism prismatoid prismoid Prof Proof quadrilateral radius regular polygon regular polyhedron Required the area right-angled triangle RULE sector slant height sphere whose diameter spherical excess spherical polygon spherical segment square root third side Trig Trigonometry upper base wedge WENTWORTH yards