BY GUNTER. Extend from 56° 45', to 33° 15' on the line of sines; that extent will reach from 274, the base, to 179.6, the perpendicular, on the line of numbers. Again; Extend from 56° 45', to radius 90°, on the line of sines; that extent will reach from 274, the base, to 327.6, the hypothenuse, on the line of numbers. CASE & 5. The Hypothenuse, and one Leg given, to find the Angles, and other Leg. Given the perpendicular, 69 chains or perches; the hypothenuse 150, to find the angles and base. For the construction, see problem 12, in Geometry. Extend from 150, the hypothenuse, to 69, the perpendicular, on the line of numbers; that extent will reach from radius 90°, to 27° 23', angle C, on the line of sines. Extend from radius, 90°, to 62° 37', angle A, on the line of sines; that extent will reach from 150, the hypothenuse, to 133.2, the base, on the line of numbers. CASE 6 & 7. The Legs given, to find the Angles and Hypothenuse. Given the perpendicular, 980 perches; the base 690, to find the angles and hypothenuse. |