Geometry Flashcards
What is Pythagoras’ Theory?
Pythagoras’ Theory is a fundamental relation among the three sides of a right angled triangle.
What the equation for Pythagoras’ Theory?
A2 + B2 = C2
Which is A squared + B squared = C squared
Brainscape can’t do the small 2
What is Trigonometry?
branch of mathematics that studies relationships between side lengths and angles of triangles.
What are trigonometric ratios?
the ratios between edges of a right angled triangle.
The unknown angle (angle of interest) for a right angled triangle can be found if?
the length of two sides of the triangle are known.
What is the side directly opposite the angle of interest on a right angle triangle called?
Opposite
What is the longest side of a triangle directly opposite the right angle called?
Hypotenuse
What is the side directly adjacent the angle of interest on a right angle triangle?
Adjacent
The sin function defines the ration between which two side of right hand triangle?
The Opposite and the hypotenuse.
What is the ratio equation for Sin?
Sin(Ø) = Opposite
————-
Hypotenuse
Side note: the lines not meant to be doted
The Tan function defines the ration between which two side of right hand triangle?
opposite and the adjacent.
What is the ratio equation for Tan?
Tan(Ø) = Opposite
————-
Adjacent
Side note: the lines not meant to be doted
The Cos function defines the ration between which two side of right hand triangle?
the hypotenuse and the adjacent.
What is the ratio equation for Cos?
Cos(Ø) = Adjacent
————-
Hypotenuse
Side note: the lines not meant to be doted
What does SOHCAHTOA stand for?
S Sine
O Opposite
H Hypotenuse
C Cosine
A Adjacent
H Hypotenuse
T Tangent
O Opposite
A Adjacent
