3 Types of Triangles
Angles & Lines
Quadrilaterals
100
A triangle with all three sides the same length and all angles equal.
What is an Equilateral Triangle?
100
ALL IN!
Two lines that never meet.
What are parallel lines?
100
LOSE IT!
A quadrilateral has two pairs of opposite sides that are equal in length.
What is a parallelogram?
200
A triangle with two sides the same length and two angles equal.
What is an isosceles triangle?
200
DOUBLE JEOPARDY!
The difference between a line and a ray.
Why do lines extend infinitely in both directions, while a ray starts at a point and extends infinitely in one direction?
200
ALL IN!
The difference between a square and a rectangle.
Why does a square have four equal sides and four right angles, while a rectangle has opposite sides that are equal and four right angles, but the sides are not necessarily all the same length?
300
LOSE IT!
This is a ____________ triangle.
What is a scalene triangle?
300
Two lines that intersect at a 90-degree angle are _________________.
What are perpendicular lines?
300
DOUBLE JEOPARDY!
A shape that is formed when two diagonals intersect inside the shape, and the diagonals are perpendicular to each other, is a ____________.
What is a rhombus?
400
ALL IN!
The difference between an equilateral triangle, an isosceles triangle, and a scalene triangle.
- Why do equilateral triangles have all three sides equal in length and all three angles equal?
- Why do isosceles triangles have two sides of equal length, and the angles opposite of these sides are equal?
- Why do scalene triangles have three different sides and three different angles?
400
LOSE IT!
The number of lines of symmetry for each shape.
- What are 0 lines of symmetry?
- What are 2 lines of symmetry?
- What are 2 lines of symmetry?
- What are 4 lines of symmetry?
- What is 1 line of symmetry?
- What is 1 line of symmetry?
400
A quadrilateral that has one pair of parallel sides and no equal sides is a _____________.
What is a trapezoid?
500
This is a ____________________.
What is an equilateral triangle?
500
ALL IN!
These are all examples of _______ angles.
What is an acute angle?
500
DOUBLE JEOPARDY!
The characteristics of a rhombus and how it is different from a kite.
Why does a rhombus have all four sides of equal length, opposite angles are equal, and the diagonals intersect at right angles? And in contrast, why does a kite have two pairs of equal adjacent sides, but its diagonals are not equal in length, and one diagonal intersects the other at right angles?