Introduction to lineal drawing and mensurationDepository of the British and Foreign School Society, 1847 - 48 |
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12 inches long 15 feet 9 inch accuracy acute angle Add diagonals Appendix architrave base black board Book Borough Road called cavetto centre chalk cima recta cornice course cultivation curved lines decagon DEFINITIONS diameter Divide door Draw a 12 Draw a rectangle Draw an ellipse Draw two curves duodecagon Enclose entablature EUCLID Example extremities facia feet 6 inches fillet find the area find the solid frieze geometrical Heptagon horizontal line Illustrate on black inch circle inch lines inch sides introduction king post lineal drawing Look round MENSURATION minutes model drawing muntin nonagon oblique line ovolo panels Parallel curve pencil perpendicular height Point polygon Prob Prop proportion pupils purlines quadrant quadrilateral figure rails rectangle 12 inches required area required the area required the solid rhombus right angle right lines roof round the room Rule schools solid contents SUCCEEDING LESSONS teacher tie beam torus trapezium Tuscan column undecagon
Popularne fragmenty
Strona 40 - To find the solidity of a cone. RULE. Multiply the area of the base by the perpendicular height, and ^ of the product will be the solidity.
Strona 40 - To find the solidity of a cylinder. RULE. — Multiply the area of the base by the altitude, and the product will be the solidity.
Strona 16 - A Segment is any part of a circle bounded by an arc and its chord. 51. A Semicircle is half the circle, or a segment cut off by a diameter. The half circumference is sometimes called the Semicircle. 52. A...
Strona 16 - Hexagon, of six sides; a Heptagon, seven; an Octagon, eight; a Nonagon, nine ; a Decagon, ten ; an Undecagon, eleven ; and a Dodecagon, twelve sides.
Strona 35 - Triangles on the same base, and between the same parallels, are equal.
Strona 35 - Any two angles of a triangle are together less than two right angles.
Strona 37 - To find the area of a trapezium. RULE. — Divide the trapezium into two triangles by a diagonal, and then find the areas of these triangles ; their sum will be the area of the trapezium.
Strona 14 - ... foursided figure with all its sides equal, and all its angles right angles.
Strona 38 - Ibs. 7 oz. to ounces. 2. The proportion of the diameter of a circle to its circumference is very nearly 113 to 355; find the circumference of a circle whose diameter is 1 32 feet.
Strona 36 - I 8.78 .|- yards breadth of the walk. PROBLEM II. To find the area of a rhombus or rhomboid. RULE. — Multiply the length of the base by the perpendicular height. 6. The base of a rhombus being 12 feet, and its height 8 feet. Required the area. Ans. 96 feet. PROBLEM III.