Unit 5 - Basic Trigonometery Flashcards
What do the angles in a triangle add to?
180
What angle is a straight line?
180
What are the four triangles?
Scalene.
Right angles.
Isosceles.
Equalatrial.
What are the base angles on an isosceles?
EQUAL
What are vertically opposite angles?
EQUAL
What is the external angle of a triangle?
The other two inside angles added.
What are corresponding angles?
EQUAL.
F ANGLE.
What are alternate angles?
EQUAL.
Z ANGLE
What do interior angles add to?
180.
What angles in a parallelogram are equal?
Opposite angles
What do the interior angles in a any polygon add to?
360
What is the equation for the sum of exterior angles in a polygon?
(N - 2) x 180
What is a polygon?
A straight sided shape.
What does Pythagoras theorem work with?
RIGHT ANGLED TRIANGLES.
What is the equation for Pythagoras theorem?
H2 = S2 + S2
When can you tell that is it trigonometry?
IF THERE IS AN ANGLE INVOLVED.
What are the three trig things?
SIN
COS
TAN
What is the acronym for trig?
The cat sat on an orange and hollowed horribly.
What do you do first for a trig question?
LABLE THE SIDES
What happens to an unknown length on the bottom?
Swap across
What happens to an unknown length on top?
Multiply up
What happens if there is an unknown angle?
SHIFT IN CALCULATOR.
What is the angle of elevation?
The angle UPWARDS from the horizontal.
What is the angle of depression?
The angle downwards from the horizontal.
