## A Royal Road to Geometry: Or, an Easy and Familiar Introduction to the Mathematics. ... By Thomas Malton. ... |

### From inside the book

Results 1-5 of 5

Page 152

By Thomas Malton. ... Thomas Malton. E IK It must also be observed , that this

operation can only be performed at or between the Tropics ; because , the Sun is

never vertical beyond them . Suppose the

it ...

By Thomas Malton. ... Thomas Malton. E IK It must also be observed , that this

operation can only be performed at or between the Tropics ; because , the Sun is

never vertical beyond them . Suppose the

**Perpendicular**AB to be erected . Whenit ...

Page 334

A Right Line is

Line drawn in the Plane , to or from that point in which the Line cuts , or would cut

, the Plane . If AB makes Right Angles with the two Lines , CD and EF , passing ...

A Right Line is

**perpendicular**to a Plane , when it makes equal Angles with everyLine drawn in the Plane , to or from that point in which the Line cuts , or would cut

, the Plane . If AB makes Right Angles with the two Lines , CD and EF , passing ...

Page 345

Or, an Easy and Familiar Introduction to the Mathematics. ... By Thomas Malton. ...

Thomas Malton. PROBLEM I. 11 Euclid . From any given Point , * to draw a Right

Line

Or, an Easy and Familiar Introduction to the Mathematics. ... By Thomas Malton. ...

Thomas Malton. PROBLEM I. 11 Euclid . From any given Point , * to draw a Right

Line

**perpendicular**to a Plane , in which that point is not fituated . Let A be the ... Page 347

K Planes , to which the same Right Line is

another . GH Let the Right Line AB be

FE . I say , those Planes are parallel . Imagine a Plane , CDEF , to pafs through

the ...

K Planes , to which the same Right Line is

**perpendicular**, are parallel to oneanother . GH Let the Right Line AB be

**perpendicular**to both the Planes , CD andFE . I say , those Planes are parallel . Imagine a Plane , CDEF , to pafs through

the ...

Page 350

Now , because A B is

not incline to it on any Side - Def.3 . But , the Line AB is in the Plane CAD ; and it

is also in the Plane E AF ; ( by Suppofition ) . consequently , those Planes do not

...

Now , because A B is

**perpendicular**to the Plane CEF ( by Hypotbesis ) it doesnot incline to it on any Side - Def.3 . But , the Line AB is in the Plane CAD ; and it

is also in the Plane E AF ; ( by Suppofition ) . consequently , those Planes do not

...

### What people are saying - Write a review

We haven't found any reviews in the usual places.

### Other editions - View all

A Royal Road to Geometry: Or, an Easy and Familiar Introduction to the ... Thomas Malton No preview available - 2016 |

### Common terms and phrases

ABCD added alſo Altitudes analogous Area Baſe becauſe biſected Book called Center Chord Circle Circumference common Cone conf conſequently Conſtruction contained cuting Cylinder Demonſtration deſcribe Diagonal Diameter difference divided draw drawn equal Euclid evident extreme fame Feet Figure firſt formed four fourth given given Line greater half Hence Inches inſcribed join laſt leſs manner mean meaſure multiplied muſt oppoſite parallel Parallelogram Parallelopiped Pentagon perpendicular Plane Point Poligon Priſm Prob PROBLEM produced Proportion Propoſition proved Pyramid Quantities Radius Ratio Rect Rectangle reſpectively Right Angles Right Line ſame ſame Ratio ſay ſeeing Segment Sides ſimilar Solid ſome Sphere Square ſuch Surface taken Terms THEOREM third thoſe touch Triangle uſe wherefore whole whoſe

### Popular passages

Page 124 - When you have proved that the three angles of every triangle are equal to two right angles...

Page 221 - 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.

Page 285 - EG, let fall from a point in the circumference upon the diameter, is a mean proportional between the two segments of the diameter DS, EF (p.

Page 284 - IN a right-angled triangle, if a perpendicular be drawn from the right angle to the base, the triangles on each side of it are similar to the whole triangle, and to one another.

Page 186 - From this it is manifest, that if one angle of a triangle be equal to the other two, it is a right angle, because the angle adjacent to it is equal to the same two; and when the adjacent angles are equal, they are right angles.

Page 248 - To express that the ratio of A to B is equal to the ratio of C to D, we write the quantities thus : A : B : : C : D; and read, A is to B as C to D.

Page 161 - In any triangle, if a line be drawn from the vertex at right angles to the base; the difference of the squares of the sides is equal to the difference of the squares of the segments of the base.

Page 160 - In any isosceles triangle, the square of one of the equal sides is equal to the square of any straight line drawn from the vertex to the base plus the product of the segments of the base.

Page 250 - Ratios that are the same to the same ratio, are the same to one another. Let A be to B as C is to D ; and as C to D, so let E be to F.

Page 124 - Angles, taken together, is equal to Twice as many Right Angles, wanting four, as the Figure has Sides.