Triangles
What are complementary angles? What are supplementary angles?
Complementary angles add up to equal 90 degrees. Supplementary angles add up to equal 180 degrees.
What is a quadrilateral? What does it mean for lines to be parallel? What does it mean for lines to be perpendicular?
A quadrilateral has 4 sides and 4 angles. Parallel lines are lines that do not touch and will never meet no matter how far you extend them. Perpendicular lines are lines that meet to make 90 degree angles.
3 quarter turns around a circle is how many degrees?
270 degrees.
What strategy should you use to solve a word problem?
READ/UNDERLINE
DRAW
WRITE your answer in a sentence
What is an equilateral triangle? What makes it equilateral.
An equilateral triangle has three equal sides. Each angle is 60 degrees.
How many degrees does all 3 angles of a triangle add up to be?
180 degrees
What is a trapezoid? How is different from a parallelogram?
A trapezoid has one set of parallel lines and a parallelogram has two sets of parallel lines.
Use 90 degrees and greater than, less than and equal to describe acute, obtuse, and right angles.
Obtuse angles are greater than right angles, or 90 degrees.
Acute angles are less than right angles, or 90 degrees.
Right angles are equal to 90 degrees.
What is Ms. Liao's favorite ice cream flavor?
Cookies and Cream
How many lines of symmetry are there on an equilateral triangle?
There are 3 lines of symmetry on an equilateral triangle.
Name the 4 benchmark angles of a circle.
90, 180, 270, 360 degrees
What is the difference between a rectangle and a square?
A square is a special type of rectangle. Rectangles and squares both have two sets of parallel lines and four right angles. A square also has four equal sides.
How would you describe a 180 degree turn around a circle?
A 180 degree turn around a circle would be half-way across the circle, or two quarter turns, or a straight line across the circle.
If you are facing the learning screen and do:
A 180 turn to the right, then a 90 turn to the left, and a 270 to the right. Which way would you be facing?
Draw an obtuse, isosceles triangle. Describe what makes it obtuse and what makes it isosceles.
Daily Double: How many lines of symmetry does it have?
An obtuse triangle has an obtuse angle and an isosceles triangle has two side lengths that are equal.
It has 1 line of symmetry
How many degrees are in a full circle? If part of that circle is 81 degrees, how many degrees are in the other part?
360
360-83 = other part
other part is=279 degrees
What is a quadrilateral with four equal sides and no right angles?
Daily Double: How many lines of symmetry does a rhombus have?
Rhombus
two lines of symmetry.
How many one 90 degree turns are there in a circle?
Four 90 degree turns or right angles in a circle.
What is a protractor? What is the difference between a 180 degree protractor and a 360 degree protractor?
Daily Double: How do you line up a protractor on an angle?
A tool you use to measure angles, 180 is half a circle, 360 is a full circle or two 180 protractors together.
You must line up the vertex to the origin then start counting by 10s whichever way the angle is facing toward.
Draw a right, scalene triangle. Describe what makes it a right triangle and what makes it a scalene triangle.
Daily Double: How many lines of symmetry does it have?
A right triangle has one right angle in it and a scalene triangle has all unequal sides.
With scalene triangles there are no lines of symmetry.
A right angle has a line segment cutting through it dividing it into two parts. One part measures 24 degrees. What does the other part measure? What equation would you use to represent this problem?
90
90-24 = other measure
other measure = 66 degrees
What is a four sided figure with four right angles with a width of 4 cm and a length of 3 cm?
A rectangle
What is a degree? How would you describe a degree as a fraction?
A degree is the unit of measure for angles, as a fraction a degree is 1 turn of 360 total turns, or 1/360.
How many lines of symmetry does a circle have? What point do all lines of symmetry for a given circle have in common?
There are infinite lines of symmetry in a circle all going through the central point.