Elements of Plane Geometry, Μέρος 1Harper & Brothers, 1878 - 132 σελίδες |
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Σελίδα 125
... feet 3 inches , and height 8 feet 6 inches : Then 3 inches.25 foot and 6 inches.5 foot . 12.25 feetX8.5 feet = 104.125 feet area . 2. Find the area of a square whose side is 35.25 chains . † Ans . 124 acres 1 rood 1 pole . 3. Find the ...
... feet 3 inches , and height 8 feet 6 inches : Then 3 inches.25 foot and 6 inches.5 foot . 12.25 feetX8.5 feet = 104.125 feet area . 2. Find the area of a square whose side is 35.25 chains . † Ans . 124 acres 1 rood 1 pole . 3. Find the ...
Σελίδα 126
... feet , and height 251 feet . = .25 . 49 × 25.25 2 = 618.625 square feet . 2. How many square yards in the triangle whose base is 40 feet , and perpendicular height 30 ? Ans . 66 square yards . 3. To find the area of a triangle whose ...
... feet , and height 251 feet . = .25 . 49 × 25.25 2 = 618.625 square feet . 2. How many square yards in the triangle whose base is 40 feet , and perpendicular height 30 ? Ans . 66 square yards . 3. To find the area of a triangle whose ...
Σελίδα 128
... feet , and a line of 320 feet will reach from the top of it to the oppo- site bank : required the width of the river . Ans . 302.97 feet . 6. A ladder 50 feet long being placed in a street reached a window 28 feet from the ground on one ...
... feet , and a line of 320 feet will reach from the top of it to the oppo- site bank : required the width of the river . Ans . 302.97 feet . 6. A ladder 50 feet long being placed in a street reached a window 28 feet from the ground on one ...
Σελίδα 129
Thomas Hunter. 12 feet 6 inches , the breadth at the greater end being 15 inches , and at the less end 11 inches . Ans . 1313 feet . 3. The parallel sides of a trapezoid are 12.41 and 8.22 chains , and the perpendicular distance 5.15 ...
Thomas Hunter. 12 feet 6 inches , the breadth at the greater end being 15 inches , and at the less end 11 inches . Ans . 1313 feet . 3. The parallel sides of a trapezoid are 12.41 and 8.22 chains , and the perpendicular distance 5.15 ...
Σελίδα 131
... feet ? Ans . 1.069 . 4. Find the area of a circle whose circumference is 12 feet . Ans . 11.4595 . 5. How many square feet are there in a circle whose circumference is 10.9956 ? Ans . 86.5933 . PROBLEM XII . To find the area of a ...
... feet ? Ans . 1.069 . 4. Find the area of a circle whose circumference is 12 feet . Ans . 11.4595 . 5. How many square feet are there in a circle whose circumference is 10.9956 ? Ans . 86.5933 . PROBLEM XII . To find the area of a ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
ABCD AC and BD AC and CB AC is equal ACEH adjacent angle allel alternate angles altitude angle ABC angle ACB angle BAC angle equal base centre chord circumference diagonal diameter draw equal angles equal const equal Prop equal to DF equiangular equilateral triangle exterior angle feet Find the area Geometry given line given point gles greater half the arc Hence the triangles hypothenuse included angle inscribed interior and opposite isosceles triangle Join the points Let ABC lines AC measured by half opposite angle parallelogram perpendicular point F polygon proportional PROPOSITION Prove quadrilateral radius rectangle rectangle contained Required the area rhombus right angles Prop right-angled triangle Scholium secant secant line segment side AC similar six right square tangent TEST EXAMPLES three sides trapezium triangle ABC
Δημοφιλή αποσπάσματα
Σελίδα 48 - If two triangles have two sides, and the included angle of the one equal to two sides and the included angle of the other, each to each, the two triangles are equal in all respects.
Σελίδα 26 - PROB. from a given point to draw a straight line equal to a given straight line. Let A be the given point, and BC the given straight line : it is required to draw from the point A a straight line equal to BC.
Σελίδα 46 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Σελίδα 45 - If one side of a triangle be produced, the exterior angle is greater than either of the interior, and opposite angles.
Σελίδα 63 - If there be two straight lines, one of which is divided into any number of parts, the rectangle contained by the two straight lines is equal to the rectangles contained by the undivided line, and the several parts of the divided line. Let...
Σελίδα 64 - If a straight line be divided into any two parts, the square of the whole line is equal to the squares of the two parts, together with twice the rectangle contained by the parts.
Σελίδα 114 - If from a point without a circle, a tangent and a secant be drawn, the tangent will be a mean proportional between the secant and its external segment.
Σελίδα 57 - If two triangles have two angles and the included side of the one, equal to two angles and the included side of the other, each to each, the two triangles will be equal.
Σελίδα 57 - Parallelograms upon the same base and between the same parallels, are equal to one another.
Σελίδα 69 - The sum of the squares on the sides of a parallelogram is equal to the sum of the squares on the diagonals.