Mensuration for elementary and middle class schools

Forside
1875 - 85 sider

Inni boken

Andre utgaver - Vis alle

Vanlige uttrykk og setninger

Populære avsnitt

Side 10 - When a straight line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle ; and the straight line which stands on the other is called a perpendicular to it.
Side 29 - 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 23 - RULE. From half the sum of the three sides, subtract each side separately; multiply the half sum and the three remainders together, and the square root of the product will be the area required.

Bibliografisk informasjon