Modual 2 Flashcards
What do angles on a point add up to?
360 degreases
Whenever one straight line crosses two parallel lines than the two bunches of angles are….. e.g. a+b
The same e.g. a+b=180
What do all of the angles inside a triangle add up to?
180 degreases
What do all of the angles in a quadrilateral add up to?
360 degrease
What do the exterior angles of a triangle add up to? e.g. a+b
The sum of the opposite interior angles e.g. a+b=d
What are parallel lines in a Z-shape called?
Alternate Angles
If the angles inside parallel lines add up to 180 degrease, what do we call the angles?
Supplementary Angles
What are parallel lines in a F-Shape called?
Corresponding Angles
What is the sum of the exterior angles in a polygon add up to?
360 degrease
What is the sum of the interior angles in a polygon add up to?
(n-2) x 180
where n is the number of sides
What is the sum of the exterior angle?
360/No. of sides
What is the sum for the interior angles?
180 - exterior angle
For bearings, what should you do when you have a ‘form’ question?
Put your pencil on the diagram at the point you are going ‘from’
What do angles in a semi-circle add up to?
90 degrease
When a triangle is drawn in a semicircle, the point that meets the radius + tangent, what does that angle always equal?
90 degrease
What is a tangent?
A line that just touches the edge of the circle and the radius curve
What is a cord?
Any line drawn across a circle
What are angles in the opposite segment?
Equal
What do opposite angles of a cyclic add up to? e.g. a+c, b+d
180 degrease e.g. a+c = 180, b+d= 180
What does congruent mean?
If any of these rules apply: SSS ASA SAS RHS
What is SSS?
Side, Side, Side.
If three of the given sides of one triangle are equal to the three given sides of another triangle
What is ASA
Angle, Side, Angle
If two angles and the given side of one triangle are equal to two angles and the given side of another triangle
What is SAS?
Side, Angle, Side
If two sides and the given angle of one triangle are equal to two sides and the given angle of another triangle
What is RHS?
Right-angle, hypotenuse, side
If the right-angle, hypotenuse and the given side of one triangle is equal to the right-angle, hypotenuse and the given side of another triangle
What do angles on a straight line add up to?
180 degreases
