Pretest Review (Day 3) REVIEWING SKILLS NEEDED TO SUCCEED IN GEOMETRY.

Pretest Review (Day 3) REVIEWING SKILLS NEEDED TO SUCCEED IN GEOMETRY.

Agenda  1. Review Homework  2. Warm Up  3. Finish Notes: Review for Pretest (Day 3) If time….**Jeopardy Review Game!**

Homework Please get out your agenda and record tonight’s homework.  1. “Geometry –Review for Pretest” #  2. BREAKING NEWS!  Pretest has been moved to Wednesday, September 17 th.

Learning Objectives 1. Identify and/or recognize: points, lines, planes, segments, rays. 2. Identify special pairs of angles. 3. Find the surface area and volume of a prism.

Warm Up

Vocabulary In Geometry, it is important to use the correct notations! Line:  A series of points that extends in 2 opposite directions without end  Can name a line by any two points on the line with a line above it, or by a single lower case letter. AB

Vocabulary - Segments Segment : part of the line consisting of 2 endpoints and all the points between them  How you name a segment: Use the 2 endpoints with a straight line above. Read “segment AB” or “segment BA” A B

Vocabulary - Rays Ray : part of a line consisting of one endpoint and all the points of the line on one side of the endpoint  How you name a ray: Endpoint must be first, then any other point on the ray; write an arrow pointing to the right above Read “Ray AB” or “Ray AC”. DO NOT write Ray BA or Ray CA. Must name endpoint first!! A B

Vocabulary - Planes  A flat surface that has no thickness  Contains many lines  Extends w/o end in the direction of all its lines  Named by a single capital letter OR by AT LEAST 3 POINTS NOT ON THE SAME LINE Plane ABC

Parallel Planes // Planes that do not intersect Example: 1. Name a plane parallel to plane EGH. Answer: Plane _____ H G E D A B C F

Parallel Segments //  1. Name 2 parallel segments. A B C D

Use the following image to answer the question. 1.Name a line. 2. Name a segment. 3.Name a ray.

Naming an Angle  What is an angle?  Formed by 2 rays with the same endpoint  How do you name an angle? 3 ways. 1 NOTE: the middle letter is the vertex

Vocabulary Angles:  Complementary 2 angles that add up to 90˚  Supplementary : 2 angles that add up to 180˚  All straight angles form a line, therefore measure 180˚

Triangles:

Let’s Practice!  A question will appear on the ENOBoard. Write your answer on the whiteboard and raise it up.

1. Classify the Triangle (by angles)

2. Classify the triangle (by sides)

3. Solve for the missing side.

4. Name the Quadrant.  (-2, -4)

5. Find the measure of the missing angle.

Alternate Interior Angles  Non-adjacent  Lie on opposite sides of the transversal in between the 2 lines it intersects  Remember: in terior means in side the parallel lines.  These angles are congruent.

Alternate Exterior Angles  Lie outside the 2 parallel lines on opposite sides of the transversal.  These angles are congruent.

Corresponding Angles  Lie on the same side of the transversal  In corresponding (same) positions  Corresponding angles are congruent.

Same Side _____________ Same Side Interior Same Side Exterior  Angles are supplementary. (add up to ______).  Angles are supplementary (add up to ______).

Vertical Angles Vertical angles share the same vertex. Vertical angles are congruent.

Surface Area In words, the surface area of a rectangular prism is the area of the six rectangles that cover it. But we don't have to figure out all six because we know that the top and bottom are the same, the front and back are the same, and the left and right sides are the same. Example: Find the surface area of the box.

Volume  The amount of space occupied by a 3D figure as measured in cubic units (as inches, quarts, or centimeters) Volume = length x width x height Example: Find the volume of the box shown.

Probability Using the spinner shown above, what is the probability of landing on an even number?

Let’s Finish the Classwork from last time.

Nice work, Mathletes!