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### MEAP Preparation - Grade 7 Mathematics4.12 Geometry Review

 A point is simply a location. A line is made up of points and has no thickness or width. Points on the same line are said to be collinear. A plane is a flat surface made up of points. Points that lie on the same plane are said to be coplanar. A pane has no depth and extends infinitely in all directions. Points are often used to name lines and planes. Midpoint of a line segment is the point on the segment that divides the segment into two congruent segments. If B is the midpoint of line AC, then AB = BC. Ray is part of line. It has one endpoint and extends indefinitely in one direction. Angle is formed by two non collinear rays that have a common endpoint. The rays are called sides of the angle. The common endpoint is the vertex. An angle divides a plane into three distinct parts: points on the angle, interior of the angle and exterior of the angle. Kinds of Angles: Acute Angle: An angle whose measure is less than 90 degrees and greater then zero degrees is called an acute angle. Right Angle: An angle whose measure is 90 degrees is called right angle. Obtuse Angle: An angle whose measure is greater than 90 degrees and less than 180 degrees is called obtuse angle. Straight Angle: An angle whose measure is 180 degrees called a straight angle. Reflex Angle: An angle whose measure is greater than 180 degrees and less than 360 degrees is called a reflex angle. Complete Angle: An angle whose measure is 360 degrees is called a complete angle. Zero Angle: If the measure of an angle is zero it is called a zero angle. Complementary Angles: Two angles are said to be complementary if the sum of their measure is 90o. Supplementary Angles: Two angles are said to be supplementary if the sum of their measure is 180o. Adjacent Angles: Two angles in a planes are called adjacent angles, if they have a common vertex, a common side, and their interiors do not have a common point. Angles 1 and 2 below are adjacent angles. Adjacent Angles: Two angles in a planes are called adjacent angles, if they have a common vertex, a common side, and their interiors do not have a common point. Angles 1 and 2 below are adjacent angles. Linear Pair of Angles: A pair of adjacent angles formed by intersecting lines is called a Linear Pair of Angles. Vertically Opposite Angles: When two lines intersect, then the angles that are opposite one another at the intersection are called Vertically Opposite Angles. The measures of the vertically opposite angles are equal. Directions: For each of the above points draw an explain in your own words. Choose the correct answers.

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### MEAP Preparation - Grade 7 Mathematics4.12 Geometry Review

 Q 1: A line has _______.one end pointno end pointsthree end pointstwo end points Q 2: The number of lines that can be drawn through a point:OneInfiniteThreeTwo Q 3: How many points are required to determine a line segment?OneInfiniteThreeTwo Q 4: A part of a line that has only one initial point and extends indefinitely in one direction only is called:RayCurved lineLine segmentLine Q 5: A figure formed by the union of two rays having the same initial point is called:AngleIntersecting linesParallel linesConcurrent lines Q 6: The vertex of angle PQR is:None of thesePQR Q 7: Non-intersecting coplanar lines are called:Concurrent linesLinear pair.Transversal linesParallel lines Q 8: If a transversal intersects two parallel lines, a pair of corresponding angles are:ComplementaryEqualSupplementaryNot equal Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!