maths key terms - chapter 5 Flashcards
(12 cards)
What are interior angles?
Angles inside a shape.
What are exterior angles?
Angles outside a shape.
What is a polygon?
A shape made using only straight lines.
What is the opposite side in a right-angled triangle?
The side of a right-angled triangle that is opposite the labelled angle.
What is the adjacent side in a right-angled triangle?
The side of a right-angled triangle that is next to the labelled angle.
What is the hypotenuse?
The longest (diagonal) side of a triangle.
What is Pythagoras’ Theorem?
a squared + b squared = c squared.
What is sine in trigonometry?
Term used in trigonometry when the opposite and hypotenuse are involved.
What is cosine in trigonometry?
Term used in trigonometry when the adjacent and hypotenuse are involved.
What is tangent in trigonometry?
Term used in trigonometry when the adjacent and opposite are involved.
What is the angle of depression?
Angle measured downwards from the horizontal.
What is the angle of elevation?
Angle measured upwards from the horizontal.
