This angle is exactly 90 degrees
What is a right angle
How many sides does a triangle have?
3 sides
This shape has four sides
What is a quadrilateral
Name a line on this figure. Write it correctly on a dry-erase board.
What is a line
This shape has 4 sides.
What is a rectangle, square, parallelogram, quadrilateral, rhombus, trapezoid, kite
This angle is less than 90 degrees
What is an acute angle
What kind of triangle is this?
What is a right triangle?
This shape has 4 equal sides
What is a rhombus or square
Name a line segment on this figure. Use your dry-erase board and write it properly.
line segment
ZY VX YV VW TU UW
This shape has 5 sides
What is a pentagon?
This angle is between 90 degrees and 180 degrees
What is an obtuse angle
What kind of a triangle is this?
Equilateral
This shape has 4 congruent sides and 4 congruent angles
What is a square
These lines will never cross. Here is an example:
What are parallel lines?
This shape has 6 sides
What is a hexagon
Name an acute angle on this figure.
What is Angle CAD
or
What is angle CDA
Name 4 types of triangles
Acute, Obtuse, Right, Equilateral, Isosceles, Scalene
This shape has 2 pairs of parallel sides, and the corners are not 90 degree angles.
What is a parallelogram
Identify 1 set of parallel lines and set of perpendicular lines. Write this correctly on your dry erase board using the proper symbols.
Line ST II line UV.
Line C is perpendicular to line ST
This shape has 10 sides
What is a decagon.
Name an Obtuse angle on this figure.
What is angle FDA
or
angle EFD
Go to the table and point out a right angle, an obtuse angle and an acute angle
Teacher judgement
This shape has 4 congruent sides, two sets of parallel sides and no 90 degree angles
What is a rhombus?
In Geometry, this is straight and has no bends. It has no thickness, and extends in both directions to infinity.
What is a line.
This shape has one set of parallel lines. There are four sides. It is a quadrilateral
What is a trapezoid