Show:
Vocabulary
Find the Missing Angle
Classify
Right or Wrong?
Hodgepodge
100
This is a portion of a line with one endpoint that continues forever in the other direction.
What is a ray?
100
If a triangle has an angle of 90 degrees and an angle of 45 degrees, this is the measure of the third angle.
What is 45 degrees?
100
This is how we would classify a triangle with angles of 70, 70, and 40 degrees and two congruent sides.
What is an acute isosceles triangle?
100
All triangles and quadrilaterals must have angles that add to 180 degrees.
What is false! Triangles do, but quadrilaterals must have angles that add up to 360 degrees.
100
This is an excellent way to earn back half of my missed test points.
What are test corrections?!?!
200
This is what we call a pair of lines that intersect to form right angles.
What are perpendicular lines?
200
If a triangle has an angle of 120 degrees and an angle of 25 degrees, this is the measure of the third angle.
What is 35 degrees?
200
This is how we would classify a triangle with angles of 38, 46, and 96 degrees, and no congruent sides.
What is an obtuse scalene triangle?
200
A triangle can be both right and acute.
What is false! In order for a triangle to be acute, all three angles must be acute. An acute angle is between 0 and 90 degrees, so a 90 degree angle does not count as acute.
200
This is the difference between a line and a line segment.
What is a line goes on forever in both directions, while a line segment has two endpoints?
300
This is what we call a pair of lines in the same plane that will never intersect.
What are parallel lines?
300
If a quadrilateral has angles of 90 degrees, 90 degrees, and 38 degrees, this is the measure of the fourth angle.
What is 142 degrees?
300
This is how I would classify a triangle with angles of 40, 60, and 80 degrees and no congruent sides.
What is an acute scalene triangle
300
If two lines are perpendicular to the same, third line, then they are parallel to each other.
What is true!
300
This is the difference between a trapezoid and a parallelogram.
What is a trapezoid has only one pair of parallel sides, and a parallelogram has two?
400
This is what we call an angle with a measure of exactly 180 degrees.
What is a straight angle?
400
If a quadrilateral has angles of 162 degrees, 46 degrees, and 48 degrees, this is the measure of the fourth angle.
What is 104 degrees?
400
This is how we would classify a triangle with angles all of 60 degrees and three congruent sides.
What is an acute (or equiangular) equilateral triangle.
400
If two lines look like they form 90 degree angles, they can be called perpendicular.
What is false! We cannot assume that lines are perpendicular unless we are told (using the correct symbols) that they are or unless we prove that they are.
400
This is the name of the tool we use to measure and draw angles.
What is a protractor?
500
This is what we call a parallelogram with all four sides congruent.
What is a rhombus?
500
Jake drew an isosceles right triangle. What are the measures of the two acute angles? How do you knokw?
What is 45 degrees? Because one angle is right, the other two must add to 90 degrees. Since it is isosceles, the acute angles have to be congruent, so they must be 45 degrees each.
500
This is how I would classify a four-sided figure having all right angles (creating two sets of parallel sides) and two sets of congruent sides.
What is a quadrilateral, a parallelogram, and a rectangle.
500
A square can be classified as a quadrilateral, a parallelogram, a rhombus, and a rectangle.
What is true! It meets the requirements for each one.
500
Jake drew an isosceles right triangle. What are the measures of the two acute angles? How do you know?
What is 45 degrees. Because it is isosceles, they must be equal to each other, and because we're using a right triangle, we've only got 90 degrees left to make 180. The two split the 90 to be 45 each.