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Geometry – Unit 1 Practice Recognize the Basics Name: _____________________________! G.CO.A.1 Date: ___________ Pd: ____ 1) Darken/Highlight the appropriate parts of the figures: a) RS R S T b) SR R S T c) RS R S T d) SR R S T e) TS R S T f) S R S T 2) TRUE / FALSE: a) b) c) d) e) f) g) Point E lies in plane B Points A, C, and F are collinear. Points A, C, and F are coplanar. Point A lies on line m and on plane B. A line can be drawn containing points D and E. A line can be drawn containing points A, C and E. There exists a plane which contains points A, D, and E. h) Every line contained in plane B intersects CF . i) The intersection of AF and DC is C. j) k) l) DC lies in plane B. Line m lies in plane B. Plane B intersects line m at A. m) DC and AE are coplanar. n) AE and AF are coplanar. 3) Fill in the blanks below: a) The _______ between points A and B is the set consisting of A, B, and all points on the line AB between A and B. b) A __________ is a segment from the center of a circle to a point on the circle. c) An ________ is the union of two non-collinear rays with the same endpoint. d) Perpendicular lines form ________ angles. 4) Determine if the notation (AB) is referring to a figure or a number: a) b) AB + BC = AC Figure / Number Figure / Number c) d) Find AB so that AB CD . AB = 6 Figure / Number Figure / Number SNRPDP AB intersects… Unit 1: Foundations of Geometry NVACS – Revised 2015-2016 Page 1 of 2 Practice – Unit 1 (cont.) 5) Determine if the angle shown between the clock hands is acute, right, or obtuse: a) b) c) acute / right / obtuse acute / right / obtuse 6) Find and name the following: a) AD CE b) AB BA c) AD BD d) e) f) g) h) i) BC BE AB BE BC BA acute / right / obtuse intersection, overlap = union, joining BA BD CE BC AD AB 7) mL 40 . List four other names for L. a) _______ b) _______ c) _______ d) _______ 8) Answer the following: a) XY 20 , A is the midpoint of XY , B is the midpoint of XA . What is BA? b) CD and EF bisect each other at O. CD = 18, LM = 23. What are CO and EO? c) 1 has twice the measure of 2 . The two angles are complementary. Find m1 and m2 . d) Two congruent angles are also supplementary. Find the measure of both angles. e) Find the missing angle measure: f) Find the missing angle measure: g) Find the missing angle measure: Page 2 of 2