Vocabulary
What are vertical angles?
180-90=
90
The sides that make an angle are called _____ and the point they create is called a ________.
rays, vertex
Three sided figures are know as what?
Triangles.
There are children out at recess standing in an octagon formation. If there is one ball, how many throws will it take for every person to throw the ball to each of the other children?
28 throws
What are supplementary and complementary angles?
Supplementary angles are two angles that add up to 180 degrees. Complementary angles are two angles that add up to 90 degrees.
90-45=
45
DAILY DOUBLE!!! What are the four types of angles we worked with this unit? Bonus: what are the other two we introduced but did not study?
What is the connection between side lengths and the angles opposite of them?
If a side length is longer, the angle is bigger. If a side length is shorter, then the angle is smaller.
Is the following true or false? Explain why. "An obtuse triangle never has more than one obtuse angle."
True. The sum of two obtuse angles would be greater than 180 and could not make a triangle.
What are the four triangle classifications by angle?
Acute, right, obtuse, and equiangular.
180-90-45=
45
When two angle share a ray or touch one another they are called what type of angles?
Adjacent angles.
What is the difference between scalene, isosceles and equilateral triangles?
A symnanym are two words that mean the same thing. An antonym are two opposites.
Is the following true or False? Explain why. "If the combination 3, 4, and 5 makes a triangle, then all proportional values make triangles also."
True. Proportional means equivalent. If these value are equivalent then they too make a triangle.
What are the three triangle classifications by sides?
Scalene, isosceles, and equilateral.
180/3=
60
True or False: Supplementary and complementary angles must always be adjacent angles.
False.
DAILY DOUBLE? True or False. Since 3, 4, and 5 make a triangle and the values 11, 12, and 13 make a triangle, then all values that increase by 1s will make a triangle. Bonus: The triangles 3, 4, and 5 and 11, 12, and 13 make what type of triangle?
True. Scalene.
Give the values of two proportional triangles and explain what their scale factor is.
Answers will vary.
What is scale factor and what is it used for?
The number a figure is multiplied or divided by in order to make a figure larger or smaller.
180-(180-(70+30))=
100
What are the values of the four types of angles, acute, right, obtuse and straight?
Acute are <90 degrees.
Right are =90 degrees.
Obtuse are >90 and <180 degrees.
Straight are =180 degrees.
How do you know if three side values make a triangle?
Add the two smallest value. They must be greater than the largest value to make a triangle.
How are the lessons from this unit used in the world around us? You must give at least 5 examples.
Answers will vary.