Warm Up Add five more straight lines to make 10..

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Presentation transcript:

Warm Up Add five more straight lines to make 10.

Pull out your homework

Warm up Pull out your homework Solve for x 2(x + 5) – 3 = 10 2x + 4y = 18

Point An exact position or location in a given plane. Is represented by a dot and named with a capital letter. Point A or Point B

Line The set of points between points P and Q in a plane and the infinite number of points that continue beyond the points. Written as Q P

Line Segment A line with two endpoints. Written as

Ray A line that has one endpoint and continues on forever in the opposite direction. B C D E A

Circle The set of points on a plane at a certain distance, or radius, from a single point, the center

Angle Made up of 2 rays joined together at a common point called a vertex. The angle is

Perpendicular Line Two lines that intersect at a right angle (90°). Written as

Parallel Line Lines in a plane that either do not share any points and never intersect, or share all points. Written as

Degrees The unit of measure for angles.

Acute Angle An angle measuring less than 90° but greater than 0°.

Right Angle An angle that measures 90°.

Obtuse Angle An angle measuring greater than 90° but less than 180°.

Straight Angle An angle measuring exactly 180°.

Adjacent Angles Two angles that share a common vertex and side. SIDE BY SIDE

Vertical Angles Two angles directly across from each other. They share a common vertex. h f e g

Complementary Angles Two angles that add up to 90 degrees. 1 2

Supplementary Angles Two angles that add up to 180°. 1 2

Interior Angle = Inside Angle B C Exterior Angle= Outside Angle

Pre-image The original figure before undergoing a transformation.

Image The new, resulting figure after a transformation

* Translations (Slide your image over) * image * preimage

* Reflections (Flip your image over) * preimage * image

* Rotations (Turn your image about a fixed point) * image * preimage

Congruent Figures are congruent if they have the same shape, size, lines, and angles.