Geometry - 7.5
... Theorem 17: Equal corresponding angles mean that lines are parallel. Corollary 1: Equal alternate interior angles mean that lines are parallel. Corollary 2: Supplementary interior angles on the same side of a transversal mean that lines are parallel. Corollary 3: In a plane, two lines perpendicular ...
... Theorem 17: Equal corresponding angles mean that lines are parallel. Corollary 1: Equal alternate interior angles mean that lines are parallel. Corollary 2: Supplementary interior angles on the same side of a transversal mean that lines are parallel. Corollary 3: In a plane, two lines perpendicular ...
4.2 and 4.9 notes
... triangle that has three congruent acute angles triangle that has one right angle triangle that has one obtuse angle ...
... triangle that has three congruent acute angles triangle that has one right angle triangle that has one obtuse angle ...
Year 7 - Nrich
... Finding length, gradient and midpoint of a line segment given its endpoints Equations of straight lines (y=mx+c, y-y1=m(x-x1), ax+by+c=0 Gradients of parallel or perpendicular lines Parabella A Equation of a circle with centre (a,b) and radius r: (xa)2+(y-b)2=r2 Circle geometry: equation of a circle ...
... Finding length, gradient and midpoint of a line segment given its endpoints Equations of straight lines (y=mx+c, y-y1=m(x-x1), ax+by+c=0 Gradients of parallel or perpendicular lines Parabella A Equation of a circle with centre (a,b) and radius r: (xa)2+(y-b)2=r2 Circle geometry: equation of a circle ...
A investigative task in parts
... Find reference angles for each following angles: The reference angle for 130° is 50°. The reference angle for 340° is 20°. The reference angle for 230° is 50°. The reference angle for 40° is 40°. The reference angle for 110° is 70°. The reference angle for −140° is 40°. The reference angle for 170° ...
... Find reference angles for each following angles: The reference angle for 130° is 50°. The reference angle for 340° is 20°. The reference angle for 230° is 50°. The reference angle for 40° is 40°. The reference angle for 110° is 70°. The reference angle for −140° is 40°. The reference angle for 170° ...
