## Orr's Circle of the Sciences: The mathematical sciences |

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added Algebra arithmetic base calculation called centre circle circumference coefficient common complete consequent contained decimals demonstration denominator describe difference divided dividend division divisor draw drawn equal equation Euclid example EXERCISE expression factors figure former formula four fourth fraction geometry give given greater Hence join less letters logarithm magnitudes manner means measure meet multiply namely observed operation opposite parallel parallelogram pass perpendicular plane positive practical principle Prop proportion proposed PROPOSITION proved quantity question quotient radius ratio reason rectangle remainder result right angles root rule sides similar simple square straight line subtract suppose surface taken term thing third touch triangle twice whole write

### Populære avsnitt

Side 86 - If two triangles have two sides of the one equal to two sides of the...

Side 60 - If a straight line meets two straight lines, so as to make the two interior angles on the same side of it taken together less than two right angles...

Side 58 - ... equal angles in each ; then shall the other sides be equal each to each : and also the third angle of the one to the third angle of the other.

Side 45 - A circle is a plane figure contained by one line, which is called the circumference, and is such that all straight lines drawn from a certain point within the figure to the circumference, are equal to one another.

Side 190 - Divide the first term of the dividend by the first term of the divisor, and write the result as the first term of the quotient. Multiply the whole divisor by the first term of the quotient, and subtract the product from the dividend.

Side 47 - Let it be granted that a straight line may be drawn from any one point to any other point.

Side 151 - Equal parallelograms which have one angle of the one equal to one angle of the other, have their sides about the equal angles reciprocally proportional ; and parallelograms that have one angle of the one equal to one angle of the other, and their sides about the equal angles reciprocally proportional, are equal to one another.

Side 96 - angle in a segment' is the angle contained by two straight lines drawn from any point in the circumference of the segment, to the extremities of the straight line which is the base of the segment.

Side 46 - A rhombus, is that which has all its sides equal, but its angles are not right angles.

Side 66 - From this it is manifest how to a given straight line to apply a parallelogram, which shall have an angle equal to a given rectilineal angle, and shall be equal to a given rectilineal figure, viz.