Geometry basics
What branch of mathematics helps us study shapes, sizes, positions and space?
Geometry
What do we call a polygon with 3 sides?
A triangle
How many sides does a quadrilateral have?
4 or four
What do we call the point where two sides meet to form an angle?
Vertex
Which is the best 3rd grade ever?
3A ;)
What do we call an exact position represented by a dot?
A point
What do we call a polygon with 5 sides?
Pentagon
How many vertices does a quadrilateral have?
4 or four
How many degrees are in a right angle?
90°
In which month is Mateo's birthday?
November
What type of line goes from side to side?
A horizontal line
What do we call a polygon with 8 sides?
An octagon
Is a rectangle a quadrilateral?
Yes
What type of angle is smaller than 90°?
An acute angle
What's the capital of Brazil?
Brasilia
What type of line goes up and down?
A vertical line
What do we call a polygon with 9 sides?
A nonagon
Sam says that every quadrilateral is a square. Is he correct? Explain why.
No, a quadrilateral is any polygon with 4 straight sides, 4 vertices and 4 angles.
What type of angle is bigger than 90° but smaller than 180°?
Complete the sentence:
Tralalero tralala
Bombardino ________
Crocodilo
What happens when a horizontal line and a vertical line meet at 90°?
They form a right angle
A polygon has 10 sides, 10 vertices and 10 angles. What is its name?
A decagon
Name two quadrilaterals that are not squares.
What type of angle is bigger than 180° but smaller than 360°?
Who teaches math in 4th grade?
Juli Mendoza