2D Shapes
Triangles
More Triangles
Lines of Symmetry
100
A quadrilateral has this many sides.
What is four.
100
A triangle has this many angles.
What is three.
100
An equilateral triangle has this many congruent sides.
What is three?
100
A square has this many lines of symmetry?
What is four.
200
This quadrilateral has only one set of parallel lines.
What is a trapezoid.
200
This type of triangle has one obtuse angle in it.
What is an obtuse triangle?
200
An isosceles triangle has this many congruent sides.
What is two?
200
A rectangle has this many lines of symmetry.
What is two. The diagonals are not lines of symmetry.
300
This shape has two sets of parallel sides, two sets of congruent sides, but does not need right angles.
What is a parallelogram.
300
This triangle has one angle measuring 90 degrees in it.
What is a right triangle?
300
A scalene triangle has this many congruent sides.
What is none?
300
A circle has this many lines of symmetry.
What is an unlimited number.
400
This quadrilateral has two sets of parallel sides, four congruent sides, but does not need right angles.
What is a rhombus.
400
How many obtuse angles can be in an acute triangle?
What is none?
400
Draw a right isosceles triangle, if possible.
What is, yes it's possible?
400
A hexagon has this many lines of symmetry.
What is six. Remember, with regular polygons (all sides congruent) you count the angles and that's the number of lines of symmetry.
500
This shape has two sets of adjacent sides that are congruent, but no parallel sides.
What is a kite.
500
A right triangle can have this many obtuse angles in it.
What is none?
500
Draw an obtuse equilateral triangle.
What is no, it's not possible.
500
A polygon with no sides congruent will have this number of lines of symmetry.
What is none.
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