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Geometry > Unit C > Flashcards

Unit C Flashcards

0
Q

Square Area

A

A = s^2

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1
Q

Square Perimeter

A

P = 4s

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2
Q

Rectangle Perimeter

A

P = 2b+2h

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3
Q

Rectangle Area

A

A = bh

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4
Q

Circle Circumference

A 
C = pi d
C = 2 pi r
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5
Q

Circle Area

A

A = pi r^2

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6
Q

Patitioning Point

A

It divides a line segment into congruent pieces using a ratio

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7
Q

Quadrilateral

A

Polygon with four sides

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8
Q

Kite

A
  • quadrilateral
  • 2 pairs of congruent adjacent sides
  • no opposite sides congruent
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9
Q

Trapezoid

A
  • quadrilateral

- 1 pair of parallel sides (bases)

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10
Q

Isosceles Trapezoid

A
  • trapezoid

- opposite sides that are not parallel are congruent

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11
Q

Parallelogram

A
  • quadrilateral

- both pairs of opposite sides are parallel

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12
Q

Rectangle

A
  • parallelogram
  • opposite sides are parallel
  • opposite sides are congruent
  • four right angles
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13
Q

Rhombus

A
  • parallelogram
  • opposite sides are parallel
  • four congruent sides
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14
Q

Square

A
  • parallelogram
  • opposite sides are parallel
  • four congruent sides
  • four right angles
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15
Q

Consecutive Angles

A

Same side interior angles

16
Q

Transversal Theorem

A

If 3 or more parallel lines cut of congruent segments on 1 transversal, then they cut of congruent segments on every transversal.

17
Q

Rectangle Theorem

A

The diagonals of a rectangle are congruent

18
Q

Trapezoid Theorem

A
  • The base angles of a trapezoid are congruent
19
Q

Isosceles Theorem

A
  • The diagonals of an isosceles trapezoid are congruent.
20
Q

Kite Theorem

A

The diagonals of a kite are perpendicular

21
Q

Rhombus Theorems - 2

A
  • Each diagonal of a rhombus bisects 2 angles of the rhombus

- The diagonals of a rhombus are perpendicular

22
Q

Converse of Rhombus Theorem - 2

A
  • If one diagonal of a parallelogram bisects 2 angles of the parallelogram, them the parallelogram is a rhombus
  • If the diagonals of the parallelogram are perpendicular, then the parallelogram is a rhombus.
23
Q

Converse of Parallelogram Theorem - 4

A
  • If both pairs of opposite sides of a quadrilateral are congruent, then the quadrilateral is a parallelogram
  • If both pairs of opposite angles of a quadrilateral are congruent, then the quadrilateral is a parallelogram
  • If the diagonals of a quadrilateral bisect each other, then the quadrilateral is a parallelogram
  • If one pair of opposite sides of a quadrilateral is both congruent and parallel, then the quadrilateral is a parallelogram.
24
Q

Parallelogram Theorems - 3

A
  • Opposite sides are congruent
  • Opposite angles are congruent
  • The diagonals of a parallelogram bisect each other
25
Q

Converse of Rectangle Theorem

A
  • If the diagonals of a parallelogram are congruent, then the parallelogram is a rectangle

Geometry (8 decks)

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