RELFE BROTHERS' EUCLID SHEETS.

PROPOSITIONS 1—26, BOOK I, ARE NOW PUBLISHED IN A SIMILAR FORM TO THIS.

PROPOSITION III.

From the greater of two given straight lines to cut off a part equal to the less.

Let

and be the two given straight lines, of which

is the greater.

Because

be equal to

is the center of the circle

therefore

straight line

is equal to

; whence

and

is equal to are each of them equal to ;

; but the

RELFE BROTHERS, 6, CHARTERHOUSE BUILDINGS, LONDON, E.C.

PROPOSITIONS 1-26, BOOK I, ARE NOW PUBLISHED IN A SIMILAR FORM TO THIS.

PROPOSITION II.

From a given point, to draw a straight line equal to a given straight line.

; and things that are equal to the same thing are equal to

; but it has been shewn that is equal to each of them equal to one another; therefore the straight line is equal to point a straight line

Wherefore from the given has been drawn equal to the given straight line