Geometry 7 Flashcards
In a rhombus diagnose are equal
No
Intersection of altitudes
Ortocenter
Intersection of medians
Centroid
Intersection of angle bisectors
Incenter
Circumcentre is the point where……………meet
Perpendicular bisectors
Centroid denoted by
G
Circumcentre denoted by
S
Centroid divides median into ………… ratio
2:1
Incenter is always inside the triangle
T
Intersection of perpendicular bisectors
Circumcenter
In a parallelogram opp sides and opp angles are equal.
T
Diagnols do intersect at 90 degree in a rectangle
F
What is a kite
If 2 adjacent sides are equal
Euler’s formula
V+ F- E= 2
Sum of exterior angles
360 degree
No of diagonals formula
N(n-3)/2
2 types of symmetry
Point symmetry and line symmetry
What is secant
A LINE passing through 2 points of a circle
Tangnent ?
A line outside circle exactly touching 1pt called tangency.
Name the parallelogram whose diagonals bisect the angles
Rhombus
Relation between degree and radian
180° = 1 pie
Who invented Cartesian system
Rene Descartes
