Show:
Angles
Pi
Circles
Triangles
Geometry Language
100
Formed by two rays or lines meeting at one point
What is an angle?
100
3.14
What is pi
100
Line segment to the centre of the circle
What is a radius
100
A polygon with three sides.
What is a triangle?
100
A straight line that has two end points.
What is a line segment?
200
An angle that is exactly 90 degrees.
What is a right angle?
200
Circumference divided by diameter
What is a the equation for pi
200
Line segment through the middle of the circle at its widest part
What is a diameter
200
A triangle that has all equal sides.
What is an equilateral triangle?
200
A straight line that goes in one direction forever starting from an end point.
What is a ray?
300
An angle that is less than 90 degrees.
What is an acute angle?
300
A six-faced solid.
What is a cube?
300
Any polygon with four sides.
What is a quadrilateral/quadangle?
300
A triangle that has two equal sides.
What is an isosceles triangle?
300
A point where two lines meet.
What is a vertex?
400
An angle that is more than 90 degrees but less than 180.
What is an obtuse angle?
400
A 3-D figure made of four triangles and a square.
What is a pyramid?
400
A four-sided figure with opposite sides parallel. Opposite angles are equal, too.
What is a rhombus?
400
A triangle with no equal sides.
What is a scalene triangle?
400
Two lines that cross or meet.
What are intersecting lines?
500
An angle that is exactly 180 degrees so that it forms a straight line.
What is a straight angle?
500
A solid shaped like a ball.
What is a sphere?
500
A polygon with two sets of parallel lines.
What is a parallelogram?
500
A triangle with a 90 degree angle.
What is a right triangle?
500
Two lines that stay the same distance apart and never meet
What are parallel lines?