Stories about Mathematics-land, Volum 2 |
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90 degrees Addition Algebra angles equal answer Arithmetic arranged asked bisect Book brackets Bring called centre changed circle Coefficients Construction course cube cutting describe describe an arc describe an equilateral difference distance Divide divisions divisor draw a straight equation Equilateral Triangle Euclid exactly example Exercise expression Extract Find the value Geometry give given straight line graph happened head inches long Join kind length letters look master means Measure meet miles Multiply negative never Note notice opposite parallel pence positive problem produce Prop Proposition protractor prove Quadrilateral quotient radius regular figure Remember Required rest right angles root set-square shillings sides equal Simple Equations Solve square STORIES Subtraction Suppose tells thing third Tommy train travelled Triangle twice whole
Populære avsnitt
Side 73 - A circle is a plane figure contained by one line, which is called the circumference, and is such that all straight lines drawn from a certain point within the figure to the circumference, are equal to one another.
Side 73 - When a straight line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle ; and the straight line which stands on the other is called a perpendicular to it.
Side 49 - To draw a straight line at right angles to a given straight line, from a given point in the same.
Side 72 - A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line.
Side 73 - An ACUTE ANGLE is one which is less than a right angle ; as the angle DEF.
Side 69 - ECF; and they are adjacent angles. But, when the adjacent angles which one straight line makes with another straight line are equal to one another, each of them is called a right IT angle ; therefore each of the angles DCF, ECF, is a right angle.
Side 52 - To draw a straight line perpendicular to a given straight line of unlimited length from a given point without it.
Side 44 - Let BAC be the given rectilineal angle, it is required to bisect it. Take any point D in AB, and from AC cut (i.
Side 72 - DEF. 2. A line has position, and it has length, but neither breadth nor thickness. The extremities of a line are points, and the intersection of two lines is a point. DEF. 3. A surface has position, and it has length and breadth, but not thickness. The boundaries of a surface, and the intersection of two surfaces, are lines. DEF. 4. A solid has position, and it has length, breadth and thickness. The boundaries of a solid are surfaces. DEF. 5. A straight line is...
Side 74 - EFGH is a square. The area of a square is found by multiplying the length of one side by itself ; in other words, Area of a square = square of one side. Find the area, in square yards and smaller units, of a square, the length of whose side is : 49. 97 yds. 52. 372 ft. 55. 98 ft. 6 in. 50. 388...