Points, Lines and Rays
What is the difference between a line and a line segment?
A line continues forever in both directions. A line segment has endpoints.
what is the name of an angle with one 90 angle?
A Right Triangle
What does quadrilateral mean?
Quadrilateral=4 sides
What is the name of an 8-sided polygon?
An octogon
How many degrees are in a right angle?
90 degrees
What is the difference between a line and a ray?
A line continues forever in both directions. A ray has one endpoint and continues forever away from that endpoint.
What do we call a triangle with equal sides?
An Equilateral triangle
Name a polygon with 2 acute angles and 2 obtuse angles.
Rhombus
What is the name of a 5-sided polygon?
A pentagon
Is a 86 degree angle:
A. acute
B. obtuse
C. straight
D. teenie tiny
Acute
Draw each correctly (3 separate pictures):
Line AB
Line Segment AB
Ray AB
<---> --- ---> AB AB AB 100 points for each correct
A B A B A B
answer!
What is the name of a triangle with two equal sides and two equal angles?
An Isoceles triangle
What is the difference between a Polygon and a Parallelogram?
A polygon is any closed shape with straight, non-crossed lines - but a parallelogram is a special kind of polygon that has two sets (or pairs) of parallel sides. (NOT two parallel sides, and NOT four parallel sides)
How many angles does a Decagon have?
10
What is the proper term for the point where two lines meet?
Vertex
Draw a set of parallel line segments
______________________ __________________________
What do we call a triangle with no equal sides and no equal angles?
A Scalene Triangle
Are all rhombi squares? Explain.
No, a rhombus is a shape with 4 equal sides, but it doesn't ALWAYS have 4 right angles. A rhombus can be a square OR a "diamond". A square has 4 equal sides AND 4 right angles.
Give two characteristics of a polygon.
A closed shape (not open) Straight lines (no curved lines) No intersecting lines Must get two for full credit. 1/2 credit for only one. No extra credit!
What are two ways to read the following...
/ABC or /CBA
Draw a pair of perpendicular line segments
Lines must be at clear right angles.
If all the inside angles of a triangle are added up, how many degrees is the total?
180 degrees
Can a trapezoid have a right angle? Draw pictures to prove or disprove your answer.
Yes it can!
What is the FEWEST number of sides a polygon can have?
3
What is the measurement of /CBD?
Angle CBD is 180 - 97 = 83 degrees