8 Similarity - Big Ideas Learning
... Theorem 8.2 Areas of Similar Polygons If two polygons are similar, then the ratio of their areas is equal to the squares of the ratios of their corresponding side lengths. ...
... Theorem 8.2 Areas of Similar Polygons If two polygons are similar, then the ratio of their areas is equal to the squares of the ratios of their corresponding side lengths. ...
Angles
... Complementary and Supplementary Angles If the sum of the measure of two angles is 180, they form a special pair of angles called supplementary angles. Two angles are supplementary if and only if (iff) the sum of their degree measure is 180. ...
... Complementary and Supplementary Angles If the sum of the measure of two angles is 180, they form a special pair of angles called supplementary angles. Two angles are supplementary if and only if (iff) the sum of their degree measure is 180. ...
Angles and Lines
... The pairs of angles on opposite sides of the transversal but outside the two lines are called Alternate Exterior Angles. ...
... The pairs of angles on opposite sides of the transversal but outside the two lines are called Alternate Exterior Angles. ...
Exterior Angles
... We can prove this using algebra as well as the facts that at any vertex the sum of the interior and one of the exterior angles is always 180◦ , and the sum of all interior angles in a polygon is 180(n − 2). Exterior Angle Sum: The sum of the exterior angles of any convex polygon is 360◦ Proof. At an ...
... We can prove this using algebra as well as the facts that at any vertex the sum of the interior and one of the exterior angles is always 180◦ , and the sum of all interior angles in a polygon is 180(n − 2). Exterior Angle Sum: The sum of the exterior angles of any convex polygon is 360◦ Proof. At an ...
Basics of Geometry
... Space is the set of all points extending in three dimensions. Think back to the plane. It extended in two dimensions, what we think of as up/down and left/right. If we add a third dimension, one that is perpendicular to the other two, we arrive at three-dimensional space. Points that lie on the same ...
... Space is the set of all points extending in three dimensions. Think back to the plane. It extended in two dimensions, what we think of as up/down and left/right. If we add a third dimension, one that is perpendicular to the other two, we arrive at three-dimensional space. Points that lie on the same ...
Angles 1. A whole turn Angles at a point add up to
... Alternate angles (Angles found in a Z-shaped figure) ...
... Alternate angles (Angles found in a Z-shaped figure) ...
