POINT

• NAMES OF A LOCATION
• Ex: point b
• Lines are connected from point to point to create a shape

PLANE

• A perfectly flat surface that extends forever in all directions
• Ex: points go on these and are plotted on these

RAY

• A part of a line that starts at one point and extends forever in one direction
• Ex: sunlight starts at the sun and goes forever

ACUTE ANGLE

• An angle smaller than 90°
• Ex: pizza

COMPLEMENTARY ANGLES

• Measures that add up to 90°
• Ex. An intersection or a cross

CONGRUENT

• Figures that have the same size and shape
• Ex. The sides of a rubric cube

PARALLEL LINES

• To lines in a plane that never meet
• Ex: perfectly straight train tracks

TRANSVERSAL

• A line that intersects any two or more other lines
• The wood on train tracks connecting the to metal pieces

ALTERNATE INTERIOR ANGLES

• Angles that are congruent on the inside of two parallel lines
• Ex: the inside points of an N

ACUTE TRIANGLES

• A triangle that has three acute angles
• Ex: Doritos
• All the angles are less than 90°

OBTUSE TRIANGLE

• A triangle with one obtuse angle
• An obtuse angle is an angle in between 90° and 180°
• Ex: a hand held fan

ISOSCELES TRIANGLE

• Has at least 2 congruent sides and 2 congruent angles
• Ex: a coat hanger

REGULAR POLYGONS

• All sides and angles are congruent.
• Ex: a regular octagon would be the shape of a stop sign

LINE

• It is perfectly straight and extends in both directions forever
• When you draw a line you put arrows pointing in both directions to signify that they go on forever.
• Ex. A line with arrows on the ends

SEGMENT

• The part of a line between two points
• Ex. Ruler

RIGHT ANGLE

• An angle that measures 90°
• We put a box in side the angle to signify this
• Ex. The inside angles of a basket ball court

OBTUSE ANGLE

• An angle that measure in between 90° and 180°
• Ex. Boomarang

SUPPLEMENTARY ANGLES

• Angles that measure up to 180°
• Ex. 2 quarters of a pie

VERTICAL ANGLES

• A pair of opposite congruent angles formed by 2 intersecting lines
• Ex. 2 sides of a rail road crossing sign

PERPENDICULAR LINES

• Lines that intersect at 90° angles
• Ex. Power lines(wire hits pole)

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CORRESPONDING ANGLES

• Matching angles of two or more polygons
• Ex. 2 equal slices of cake

ALTERNATE EXTERIOR ANGLES

• A pair of angles on he outer sides of two lines cut by a transversal on opposite sides of the transversal
• Ex. Parking lots

RIGHT TRIANGLE

• A triangle with one angle that measures 90° degrees
• Ex. Half a sandwhich

EQUILATERAL TRIANGLE

• A triangle with 3 congruent sides and angles
• Ex. Caution sign

SCALENE TRIANGLE

• A triangle with all different sides and angles
• Ex. Sail on a boat

IRREGULAR POLYGONS

• Polygons without all equal sides and angles
• Ex. An irregular octagon would look like the picture above.

THE END