Download Module 9 grade 7

Module 9 Vocabulary
Grade 7
Test Thurs., February 9, flashcards due Wed., Feb. 1
Acute angle- an angle that measures greater than 0° and less than 90°
Adjacent angles - pairs of angles that share a vertex and one side but do not overlap.
Diameter- Line segment that passes through the center of a circle and has endpoints on the circle.
Circumference -The distance around a circle.
Complementary angles -two angles whose measures have a sum of 90°.
Congruent angles - angles that have the same measure
Obtuse angle- an angle whose measure is greater than 90° but less than 180°
Pi- the ratio of circumference to diameter.
Radius - Line segment with one endpoint on a circle and one at the center of the circle.
Right angle- an angle that measures 90°
Supplementary angles - two angles whose measures have a sum of 180°.
Vertical angles - the opposite angles formed by two intersecting lines
Vertex – on an angle or polygon, the point where two sides intersect.