Geometry 7 Flashcards

1
Q

In a rhombus diagnose are equal

A

No

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2
Q

Intersection of altitudes

A

Ortocenter

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3
Q

Intersection of medians

A

Centroid

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4
Q

Intersection of angle bisectors

A

Incenter

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5
Q

Circumcentre is the point where……………meet

A

Perpendicular bisectors

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6
Q

Centroid denoted by

A

G

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7
Q

Circumcentre denoted by

A

S

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8
Q

Centroid divides median into ………… ratio

A

2:1

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9
Q

Incenter is always inside the triangle

A

T

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10
Q

Intersection of perpendicular bisectors

A

Circumcenter

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11
Q

In a parallelogram opp sides and opp angles are equal.

A

T

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12
Q

Diagnols do intersect at 90 degree in a rectangle

A

F

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13
Q

What is a kite

A

If 2 adjacent sides are equal

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14
Q

Euler’s formula

A

V+ F- E= 2

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15
Q

Sum of exterior angles

A

360 degree

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16
Q

No of diagonals formula

A

N(n-3)/2

17
Q

2 types of symmetry

A

Point symmetry and line symmetry

18
Q

What is secant

A

A LINE passing through 2 points of a circle

19
Q

Tangnent ?

A

A line outside circle exactly touching 1pt called tangency.

20
Q

Name the parallelogram whose diagonals bisect the angles

A

Rhombus

21
Q

Relation between degree and radian

A

180° = 1 pie

22
Q

Who invented Cartesian system

A

Rene Descartes