VOCABULARY INTERSECTING LINES PARELLEL LINES AND TRANSVERSALS ANGLES

-VOCABULARY -INTERSECTING LINES, PARELLEL LINES, AND TRANSVERSALS -ANGLES -TRIANGLES -CIRCLES -QUADRILATERALS -PYTHAGOREAN THEOREM

� LINES: PERPENDICULAR – a straight line that crosses another straight line to create a 90⁰ angle. PARALLEL – a straight line that runs along the same angle as another straight line and will never intersect TRANSVERSAL – a straight line that intersects two or more lines MIDPOINT – the point of a line segment that divides the line segment evenly in two equal parts

� ANGLES OPPOSITE ANGLES – non-adjacent angles that are formed by two intersecting lines ADJACENT ANGLES – angles that share a common vertex and a common arm VERTEX – a special kind of point that describes the corners or intersections of geometric shapes COMPLIMENTARY ANGLES – two angles that add up to 90 ⁰ RIGHT ANGLE – one angle that is 90 ⁰

� ANGLES SUPPLEMENTARY ANGLES – two angles that add up to 180 ⁰ STRAIGHT ANGLE – one angle that is 180 ⁰ CORRESPONDING ANGLES – matching angles that are formed by transversal and two parallel lines CIRCLE – has exactly 360 ⁰ TRIANGLE – HAS EXACTLY 180 ⁰

� 1 4 2 3

� Parallel lines are the two lines that are at the same angle and same distance. They will never intersect. 1 3 � Therefore, 8 if a line intersects with them they will have corresponding angles. (1 = 3 = 8)