Math vocab Flashcards
Pythagoras
a2 + b2 = c2
Trigonometry
Study of triangles
Sine
When you work with opposite and hypotenuse
Cosine
When you work with adjacent and and hypotenuse
Tangent
When you work with opposite and adjacent
Parallel
straight lines that are always the same distance apart from each other
Perpendicular
a straight line that makes the right angle (90 degrees) with the other line.
acute
angles smaller then 90 degrees
obtuse
angles larger then 90 degrees
reflex
angle more then 180 degrees
semi circle
a one-dimensional locus of points that forms half of a circle.
circumference
Outside fo a circle
radius
the distance from the center of the circle to any point on it’s circumference
diameter
the distance from one point of the circle through the centre of the circle to another point on the circle.
perimeter
measurement around a shape
area
measurement of the inside of the shape
volume
Amount of space
capacity
How much fluid fits inside
hectare
a non-SI metric unit of area equal to a square with 100-metre sides
cylinder
a three-dimensional solid that holds two parallel bases joined by a curved surface, at a fixed distance
rhombus
it has four sides and that opposite sides will be parallel to each other
parallelogram
Two pairs of opposite sides are parallel
trapezium
a quadrilateral with no parallel sides
kite
a quadrilateral with reflection symmetry across one of its diagonals