Mensuration for elementary and middle class schools1875 - 85 σελίδες |
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Σελίδα 11
... equal to one another , each of these angles is called a right angle . An acute angle is less than a right angle , as ABD , DBE . An obtuse angle is greater than a right angle , as DBC . A B LESSON II . - TABLES OF MEASUREMENT . In ...
... equal to one another , each of these angles is called a right angle . An acute angle is less than a right angle , as ABD , DBE . An obtuse angle is greater than a right angle , as DBC . A B LESSON II . - TABLES OF MEASUREMENT . In ...
Σελίδα 12
... equal to 5 yards , in Scotland 6 yards make one pole ; and , to make matters still worse , in Ireland and the North of England a length of 7 yards , and in Cheshire of 8 yards , is called by the same name . In the same way the name ell ...
... equal to 5 yards , in Scotland 6 yards make one pole ; and , to make matters still worse , in Ireland and the North of England a length of 7 yards , and in Cheshire of 8 yards , is called by the same name . In the same way the name ell ...
Σελίδα 14
... equal parts , each of which is called a degree . If two diameters of a circle cross each other at right angles , as in the figure , they make four angles of 90 degrees . Every angle which con- tains 90 ° is a right angle ; half of a ...
... equal parts , each of which is called a degree . If two diameters of a circle cross each other at right angles , as in the figure , they make four angles of 90 degrees . Every angle which con- tains 90 ° is a right angle ; half of a ...
Σελίδα 15
... equal parts called minutes ( ' ) ; and each minute into sixty equal parts called seconds ( " ) . In writing , instead of the names we use the symbols , which are marked above in brackets , so that 27 ° 42 ′ 23 ′′ is only a short way of ...
... equal parts called minutes ( ' ) ; and each minute into sixty equal parts called seconds ( " ) . In writing , instead of the names we use the symbols , which are marked above in brackets , so that 27 ° 42 ′ 23 ′′ is only a short way of ...
Σελίδα 16
... equal ( as A ) , or isosceles , i.e. , having two sides equal ( as B ) , or scalene , i.e. , having all three sides unequal ( as C ) . Triangles are also often classified according to their angles . -MENSURATION OF LINES AND SURFACES IV ...
... equal ( as A ) , or isosceles , i.e. , having two sides equal ( as B ) , or scalene , i.e. , having all three sides unequal ( as C ) . Triangles are also often classified according to their angles . -MENSURATION OF LINES AND SURFACES IV ...
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
16 Maps acres ATLAS base breadth calculating called centre chains circle circular circumference cloth lettered consisting of 32 contains exactly convex surface cube cubic foot cubic ft diagonal diameter dimensions divided ellipse Euclid EXERCISES Fcap feet field find its area find its solidity find its volume find the area find the cost find the length Find the solid find the volume frustrum GEOGRAPHY Glasgow Gunter's chain heptagon Herriot Hill hypothenuse inscribed LESSON LL.D miles multiply half number of sides ordinates parallel parallelopiped pentagonal perpendicular distance perpendicular height Physical Map pickets poles radius rectangular regular polygon rhomboid rhombus right angle right-angled triangle rule sector segment side measures slant height small faces solid content solid figure sphere is equal square and rectangle square foot square pyramid square yard straight line surveyor trapezium trapezoid triangular prism vertex wedge World-shewing
Δημοφιλή αποσπάσματα
Σελίδα 10 - 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.
Σελίδα 29 - 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.
Σελίδα 23 - RULE. From half the sum of the three sides, subtract each side separately; multiply the half sum and the three remainders together, and the square root of the product will be the area required.