The Young Mathematician's Guide: Being a Plain and Easie Introduction to the Mathematicks |
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Page 289
... Base ; ther Two are only called Sides , or Legs . 8. The altitude or height of any Plain Triangle , is the Length of a Right Line let fall Perpendicular from any of its Angles , upon the Side oppofite to that Angle from whence it falls ...
... Base ; ther Two are only called Sides , or Legs . 8. The altitude or height of any Plain Triangle , is the Length of a Right Line let fall Perpendicular from any of its Angles , upon the Side oppofite to that Angle from whence it falls ...
Page 327
... Base , being given , To find the Base , & c . 6 7 Let And Ild the Difference of the Sides 405 . 2b the Difference of the Segments 495 3x165 the Differ . of the Greater Side and Bafe . 4 a the Least Side = Then 5d + a + x = the Bafe And ...
... Base , being given , To find the Base , & c . 6 7 Let And Ild the Difference of the Sides 405 . 2b the Difference of the Segments 495 3x165 the Differ . of the Greater Side and Bafe . 4 a the Least Side = Then 5d + a + x = the Bafe And ...
Page 328
... the Two Sides of any plain Triangle , the Difference of the Segments of the Bafe , and the Perpendicular Let fall from the Vertical Vertical Angle upon the Base , being given , Thence 328 Part III Elements of Geometry .
... the Two Sides of any plain Triangle , the Difference of the Segments of the Bafe , and the Perpendicular Let fall from the Vertical Vertical Angle upon the Base , being given , Thence 328 Part III Elements of Geometry .
Page 329
... Base , being given , Thence to find the Base , And the Sides . Let Put Then 1s1155 the Sum of the Sides . 2 d = 495 the Difference of the Segments . 3300 the Perpendicular . 44 the Leaft Segment . 5e the Least Side . 6d2a = the Base ...
... Base , being given , Thence to find the Base , And the Sides . Let Put Then 1s1155 the Sum of the Sides . 2 d = 495 the Difference of the Segments . 3300 the Perpendicular . 44 the Leaft Segment . 5e the Least Side . 6d2a = the Base ...
Page 347
... Bases of thofe fafccles Triangles ) to fuch a convenient Smallnefs , as may be neceffary to determine and fettle the Proportion betwixt a Cir cle's Diameter and its Periphery , ( to any affign'd Exaltnefs ) hath hitherto been a Work ...
... Bases of thofe fafccles Triangles ) to fuch a convenient Smallnefs , as may be neceffary to determine and fettle the Proportion betwixt a Cir cle's Diameter and its Periphery , ( to any affign'd Exaltnefs ) hath hitherto been a Work ...
Common terms and phrases
alfo Amount Anfwer Arch Area Arithmetick Bafe becauſe Cafe call'd Cathetus Chap Circle Circle's Compound Intereft Confequently Cube Cube Root Cyphers Decimal Defcribe Demonftration Denomination Difference Divided Dividend Divifion Divifor Dollers Ducats eafie eafily Ellipfis Equal Equation Euclid Example Extreams faid fame feveral fhall fhew Firft Firſt fome Fractions ftand fuch Gallon Geometrical given hath Hence Hyperbola juft Laft Laft Term Latus Rectum Learner Lefs Meaſure muft Multiplicand Multiply muſt Number of Terms obferve Operation Parabola Parallelogram perform'd Periphery Perpendicular Point Pound Power Product Progreffion propofed Proportion Quantities Queft Quere Question Quotient Figure Radius Rate Reafon Refolvend refpective reft reprefent requir'd Right Angles Right Line Right-line Root Rule Second Sect Segment Series Shillings Sides Square ſtand Subftract Suppofe Surd thefe Theorem theſe Third thofe thoſe Troy Weight Uncia's uſed Vulgar Fractions whofe whole Numbers
Popular passages
Page 166 - Multiply the numerators together for a new numerator, and the denominators together for a new denominator.
Page 307 - The conviction of a truth may be irresistible, and yet not immediate. Thus, my conviction that the three angles of every plain triangle are equal to two right angles, is irresistible, but it is not immediate ; I am convinced of it by demonstrative reasoning. There are other truths in mathematics of which we have not only an irresistible but an immediate conviction. Such are the axioms. Our belief of the axioms in mathematics is not grounded upon argument — arguments...
Page 98 - If 2 men can do 12 rods of ditching in 6 days ; how many rods may be done by 8 men in 24 days ? Ans.
Page 48 - FRACTIONS, or broken numbers, are expressions for any assignable parts of an unit ; and are represented by two numbers, placed one above the other, with a line drawn between them. The number above the line is called the numerator, and that below the line the denominator.
Page 81 - Year, and fo on from Year to Year until the End of the Time, allowing the Increafc to be but in a ten-fold Proportion. It is required to find the Sum of the whole Produce.
Page 252 - Penfions, &c. are faid to be in Arrears, •** when they are payable or due, either Yearly, or Half-yearly) &c.
Page 114 - The particular Rates of all the Ingredients propofed to be mixed, the Mean Rate of the whole Mixture, and any one .of the Quantities to be mixed being given: Thence to find how much of every one of the other Ingredients is requifite to compofe the Mixture. Note, This is ufually called Alligation Partial.
Page 284 - tis 5 to 4, that one of 26 years old will die before one of 16 ; and 6 to 5 that one of 36 will die before one of 26 ; and 3 to 2, that the same person of 36 shall die before him of 16 : And so forward according to the Roots...
Page 82 - The method of finding out the number of changes, is by a continual multiplication of all the terms in a series of arithmetical...