Triangles
Classify this triangle by its angles
45
45
90
Right Angle
Draw all lines of symmetry of a square.
4 lines of symmetry
What kind of angle is 30 degrees
Acute
Describe the differences between a square and a rhombus.
A square has 4 right angles and a rhombus has 2 acute angles and 2 obtuse angles.
Yani created a play area for her dolls. The play area has six sides and all the sides are the same length. Draw what the play area may look like.
See student response
Classify this triangle by its angles.
30
65
30
Acute
Draw all lines of symmetry of a smiley face.
1
What kind of angle is 142 degrees
Obtuse
Describe the differences between a rectangle and a trapezoid.
Rectangle has 2 sets of parallel lines and 4 right angles.
Trapezoid has 1 set of parallel lines, 2 acute angles and 2 obtuse angles.
Paul walked ten feet in a straight line, then turned at a 90 degree angle and walked ten feet. Then, he turned at a forty-five degree angle to walk back to where he started. Draw a diagram of his walk.
See student response.
Create an obtuse triangle
See student answer
Draw all lines of symmetry on the letter A.
1
What degree does a straight line measure?
180 degrees
Draw a shape that has two sets of parallel sides that are all equal in length
Square or rhombus
Create a diagram of a garden that is made of two squares and a trapezoid. How many right angles does the garden have? How many acute or obtuse angles?
See student response
Create an acute triangle.
See student answer
Draw all lines of symmetry on the letter H
2
Draw an acute angle.
See student drawing
Draw a trapezoid. How many sets of parallel sides does it have? What makes it a trapezoid?
See student answers. Should have 1 set of opposite parallel sides.
An obtuse angle measures 133 degrees and is split into two angles. One measures 47 degrees. What is the measure of the other angle?
86 degrees
What is an equilateral triangle.
All sides and angles are equal.
How many lines of symmetry does a Hexagon have?
4
Draw an obtuse angle.
See student drawing
What polygon has 8 sides.
Octagon
Kaden drew a figure with 2 lines of symmetry and four sides. What could he have drawn?
Rectangle or rhombus