Common Core: Geometry
8.G.A5
Use informal arguments to establish facts about the angle sum and exterior angle of triangles, about the angles created when parallel lines are cut by a transversal, and the angle-angle criterion for similarity of triangles. For example, arrange three copies of the same triangle so that the sum of the three angles appears to form … Read More “8.G.A5”
October 1, 20188.G.B7
Apply the Pythagorean Theorem to determine unknown side lengths in right triangles in real-world and mathematical problems in two and three dimensions.
October 1, 20188.G.B8
Apply the Pythagorean Theorem to find the distance between two points in a coordinate system.
October 1, 20188.G.C9
Know the formulas for the volumes of cones, cylinders, and spheres and use them to solve real-world and mathematical problems.
October 1, 20188.G.A1
Verify experimentally the properties of rotations, reflections, and translations:
October 1, 20188.G.A1a
Lines are taken to lines, and line segments to line segments of the same length.
October 1, 20188.G.A2
Understand that a two-dimensional figure is congruent to another if the second can be obtained from the first by a sequence of rotations, reflections, and translations; given two congruent figures, describe a sequence that exhibits the congruence between them.
October 1, 20188.G.A3
Describe the effect of dilations, translations, rotations, and reflections on two-dimensional figures using coordinates.
October 1, 20188.G.A4
Understand that a two-dimensional figure is similar to another if the second can be obtained from the first by a sequence of rotations, reflections, translations, and dilations; given two similar two-dimensional figures, describe a sequence that exhibits the similarity between them.
October 1, 2018