| Robert Potts - 1864
...called a perpendicular to it. XL An obtuse angle is that which is greater than a right angle. XII. **An acute angle is that which is less than a right angle.** XIII. A term or boundary is the extremity of any thing. XIv. A figure is that which is enclosed by... | |
| Alexander Kennedy Isbister - 1865
...that which is less than a right _ angle. XIII. A term or boundary is the extremity of any thing. XIV. **A figure is that which is enclosed by one or more boundaries.** XV. A circle is a plane figure contained by one line, which is called the circumference, and is such... | |
| 1865
...called a PERPENDICULAR to it. 10. An OBTUSE ANGLE is that which is greater than a right angle. 11. **An ACUTE ANGLE is that which is less than a right angle.** 12. PARALLEL LINES, or those straight lines which are in the same plane, and being produced ever so... | |
| 1866
...enters, its tangent is the straight lino which is used in determining the angle. ANGLE (RECTILINEAR). 311 **an acute angle is that which is less than a right angle** ; an dbhae angle is that which lies between ona and two right angles. Complemcntal angles are two which... | |
| Edward Clarke Lowe - 1866
...other is & perpendicular to it. 11. An obtuse angle is that which is greater than a right angle. 12. **An acute angle is that which is less than a right angle.** ___^— 1 3. A term or boundary is the extremity ot anything. 14. Afgure is that which is enclosed... | |
| Euclid, Isaac Todhunter - 1867 - 400 pągines
...is that which is less than a right angle. 13. A term or boundary is the extremity of any thing. 14. **A figure is that which is enclosed by one or more boundaries.** 15. A circle is a plane figure contained by one line, which is called the circumference, and is such,... | |
| Euclid, Isaac Todhunter - 1867 - 400 pągines
...called a perpendicular to it. 11. An obtuse angle is that which is greater than a right angle. 12. **An acute angle is that which is less than a right angle.** 13. A term or boundary is the extremity of any thing. 14. A figure is that which is enclosed by one... | |
| Robert Potts - 1868 - 410 pągines
...called a perpendicular to it. XL An obtuse angle is that which is greater than a right angle. XII. **An acute angle is that which is less than a right angle.** XTTI. A term or boundary is the extremity of any thing. xrv. XV. A circle is a plane figure contained... | |
| Walter Smith - 1872 - 44 pągines
...— No. 1. A right angle. No. 2. An obtuse angle is that which is greater than a right angle. No. 3. **An acute angle is that which is less than a right angle.** The dotted line shows a right angle in 2 and 3. DIVISION ft. TRIANGLES NAMED FROM TIIEIK ANGLES. DEFINITIONS.... | |
| Henry Major - 1873
...acute angle is less than a right angle. XIII. A term or boundary is the extremity of any. thing. XIV. **A figure is that which is enclosed by one or more boundaries.** , XV. A circle is a plane figure contained by one line, called the circumference, such that all straight... | |
| |