Angles & Lines
This type of angle measures exactly 90°
What is a right angle?
A three-sided shape is called this
What is a triangle?
The distance across a circle through its center
What is the diameter?
A solid shape with six square faces
What is a cube?
A shape that has all sides equal and all angles equal
What is a regular polygon?
Two angles that add up to 180° are called this
What are supplementary angles?
A triangle with all equal sides.
What is an equilateral triangle?
The distance around a circle
What is the circumference?
The 3D shape of a can.
What is a cylinder?
The longest side of a right triangle.
What is the hypotenuse?
A pair of opposite angles formed by two intersecting lines
What are vertical angles?
The sum of the interior angles of a triangle
What is 180 degrees?
The formula for the area of a circle
What is A = πr²?
Volume of a rectangular prism
What is V = l × w × h?
or V=Bh
A tool used to measure angles
What is a protractor?
Lines that never meet and are always the same distance apart.
What are parallel lines?
A polygon with six sides.
What is a hexagon?
A segment from the center of a circle to any point on the circle
What is the radius?
The number of faces on a pyramid with a square base
What is 5?
A transformation that flips a shape over a line.
What is a reflection?
A straight line that intersects two or more other lines
hat is a transversal?
A triangle with one angle greater than 90°
What is an obtuse triangle?
A part of a circle’s circumference
What is an arc?
A 3D shape with only one circular base
What is a cone?
A shape that has the same size and shape as another.
What is congruent?