 | Daniel W. Fish - Arithmetic - 1874 - 526 pages
...is less than a *- right angle. All angles except right angles are called oMiyue angles. Horizontal. PLANE FIGURES. 866. A Plane Figure is a portion of...regular polygon has all its sides and all its angles eqnal. The altitude of a polygon is the perpendicular distance between its base and a side or angle... | |
 | Daniel W. Fish - Arithmetic - 1874 - 538 pages
...Angle is less than a right angle. All angles except right angles are called oblique angles. Horizontal. PLANE FIGURES. 866. A Plane Figure is a portion of...which bound it. (46O.) A regular polygon has all its Bides and all its angles equal. The altitude of a polygon is the perpendicular distance between its... | |
 | Daniel W. Fish - Arithmetic - 1874 - 298 pages
...is less than a ' right angle. All angles except right angles are called oblique anglet. Horizontal. PLANE FIGURES. 866. A Plane Figure is a portion of...the lines which bound it. (46O.) A regular polygon baa all its Fides and all its angles equal. The altitude of a polygon IB the perpendicular distance... | |
 | Daniel W. Fish - Arithmetic - 1874 - 540 pages
...864. An Obtuse Angle is greater than a right angle. 865, An Acute Angle is lees than • right angle. PLANE FIGURES. 866. A Plane Figure is a portion of...a plane figure is the surface included within the Hues which bound it. (46O.) A regular polygon has all its Bides and all its angles equal. The altitude... | |
 | Daniel W. Fish - Arithmetic - 1874 - 300 pages
...Angle is less than a ' right angle. All angles except right angles are called Migiie angla. Horizontal. PLANE FIGURES. 866. A Plane Figure is a portion of...Perimeter of a polygon is the sum of its sides. 869. The A feu of a plane figure is the surface included within the lines which bound it. (46O.) A regular polygon... | |
 | Daniel W. Fish - Arithmetic - 1874 - 298 pages
...less than a '• right angle. All angles except right angles are called oMiyiu angles. Horizontal. PLANE FIGURES. 866. A Plane Figure is a portion of...surface bounded by straight or curved lines. 867. A Polygott, is a plane figure bounded by straight lines. 868. The Perimeter of a polygon is the sum of... | |
 | Daniel W. Fish - 1874 - 320 pages
...right angles, and its opposite sides equal. When all its sides are equal it is called a square. 294. The Area of a plane figure is the surface included within the lines which bound it, and is expressed by the number of times it contains a given unit of measure. 295. The Unit of Measure... | |
 | Daniel W. Fish - Arithmetic - 1874 - 542 pages
...Angle is less than a right angle. All angles except right angles are called otttqtu angle*. Horizontal. PLANE FIGURES. 866. A Plane Figure is a portion of a plane surface boudRed by straight or curved lines. 867. A Polygon is a plane figure bounded by straight lines. 868.... | |
 | Horatio Nelson Robinson - Arithmetic - 1875 - 462 pages
...plane figure bounded by straight lines. 715. The Perimeter of a polygon is the sum of its sides. 716. The Area of a plane figure is the surface included within the lines which bound it (282). A regular polygon has all its sides and all its angles equal. A polygon of three sides is called... | |
 | Daniel W. Fish - Arithmetic - 1875 - 350 pages
...angles, and its opposite sides equal. When all its sides are equal it is called a square. 294. TJie Area of a plane figure is the surface included within the lines which bound it, and is expressed by the number of times it contains a given unit of measure. 295. The Unit of Measure... | |
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A Plane Figure is a portion of a plane surface bounded by straight or curved lines. 
