## 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 11

A CIRCLE is the fimplest and most perfect of all Plane Figures , therefore the first ;

it is bounded by one regular and uniform curved Line , falling again into itself ;

which is called the

...

A CIRCLE is the fimplest and most perfect of all Plane Figures , therefore the first ;

it is bounded by one regular and uniform curved Line , falling again into itself ;

which is called the

**CIRCUMFERENCE**of the Circle . The curved Line ABD is the...

Page 227

Seven ( for a Heptagon ) and , through every Division , draw C1 , C2 , & c . cuting

the given Circle in D , E , F , & c ; which will divide the

equal Parts , in those Points ; and , being joined by Right Lines , compleats the ...

Seven ( for a Heptagon ) and , through every Division , draw C1 , C2 , & c . cuting

the given Circle in D , E , F , & c ; which will divide the

**Circumference**into sevenequal Parts , in those Points ; and , being joined by Right Lines , compleats the ...

Page 9

But , the greater the number of Sides of the Poligon , the nearer it is to the Area of

the Circle , i.e. to the Circle itself ; and consequently , it must at last end in the

Circle ; that is , the Perimeter of the Poligon , will be equal to the

...

But , the greater the number of Sides of the Poligon , the nearer it is to the Area of

the Circle , i.e. to the Circle itself ; and consequently , it must at last end in the

Circle ; that is , the Perimeter of the Poligon , will be equal to the

**Circumference**of...

Page 10

Hence , the Rule for measuring a Circle is , to multiply half the

the Radius . From hence it is clear , that , of all Figures which have an equal

Perimeter or

Line ...

Hence , the Rule for measuring a Circle is , to multiply half the

**Circumference**bythe Radius . From hence it is clear , that , of all Figures which have an equal

Perimeter or

**Circumference**; i . e . whose Bounds are equal to the same RightLine ...

Page 10

Hence , the Rule for measuring a Circle is , to multiply half the

the Radius . From hence it is clear , that , of all Figures which have an equal

Perimeter or

Line ...

Hence , the Rule for measuring a Circle is , to multiply half the

**Circumference**bythe Radius . From hence it is clear , that , of all Figures which have an equal

Perimeter or

**Circumference**; i . e . whose Bounds are equal to the same RightLine ...

### 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.