An Encyclopaedia of Architecture, Historical, Theoretical, & Practical |
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Page 250
Amongst the structures of the 15th century ( ex . cepting St. Mary at Esslingen ,
which will be hereafter mentioned ) were St. Catherine at Brandenburg , 1401 ,
by H. Brunsbergh , with nave and aisles of equal height ; the choir of St. Mary at ...
Amongst the structures of the 15th century ( ex . cepting St. Mary at Esslingen ,
which will be hereafter mentioned ) were St. Catherine at Brandenburg , 1401 ,
by H. Brunsbergh , with nave and aisles of equal height ; the choir of St. Mary at ...
Page 265
One line is perpendicular to another when the two angles it makes with that other
line are equal : thus , the line CD ( fig . 297. ) is perpendicular to the line AB , if
the angles CDA , CDB contain an equal number of degrees . 19. Two lines are ...
One line is perpendicular to another when the two angles it makes with that other
line are equal : thus , the line CD ( fig . 297. ) is perpendicular to the line AB , if
the angles CDA , CDB contain an equal number of degrees . 19. Two lines are ...
Page 266
be the given line upon which it is required to describe a tria whose three sides
shall be equal . From the point A , with the radius AB , describe the cir .
cumference BCD , and from the point B , with the radius BA , describe the
circumference ACF ...
be the given line upon which it is required to describe a tria whose three sides
shall be equal . From the point A , with the radius AB , describe the cir .
cumference BCD , and from the point B , with the radius BA , describe the
circumference ACF ...
Page 267
267 AB draw the equilateral triangle AFB , draw also the right line DF ; AC is
equal w CB . In the two larger triangles DAF , DBF the sides DA , DB are equal ,
because they are the sides of an equilateral triangle ; the sides AF , BF are equal
for ...
267 AB draw the equilateral triangle AFB , draw also the right line DF ; AC is
equal w CB . In the two larger triangles DAF , DBF the sides DA , DB are equal ,
because they are the sides of an equilateral triangle ; the sides AF , BF are equal
for ...
Page 268
10 ) equal to two right angles ; and these two angles are equal , because CD is
perpendicular to AB . Wherefore each angle is a right angle . 887. Prop . XII . If
two lines cut each other , the vertical or opposite angles are equal . Let the lines
AD ...
10 ) equal to two right angles ; and these two angles are equal , because CD is
perpendicular to AB . Wherefore each angle is a right angle . 887. Prop . XII . If
two lines cut each other , the vertical or opposite angles are equal . Let the lines
AD ...
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