Geometry Flashcards

1
Q

Adjeaent Angles

A

Two angles that share the same vertex and have one side in common

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2
Q

Alternate Angles

A

Pairs of equal angles foremed on opposite sides

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3
Q

Altitude

A

The height of a geometric figure

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4
Q

Bisect

A

Divides into two equal parts

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5
Q

Complimetary Angles

A

Angles that add up to 90º

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6
Q

Supplementary Angles

A

Angles that add up to 180º

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7
Q

Transversal

A

A line that crosses or intersects two or more lines

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8
Q

What 3 letters can be found in transversals? How do these help us?

A

Z, F and C

The “armpits” of Z and F are equal

The “armpits” of C add to 180º

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9
Q

The Interior Angles of a traingle add up to what?

A

180º

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10
Q

The interior angles of a quadrilateral add to what?

A

360º

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11
Q

What equation is used when finding the sum of the interior angles in a polygon?

A

(n-2) x 180

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12
Q

Midpoint

A

The point that divides a line segment into 2 equal segments

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13
Q

Median

A

The line segment joining a vertex of a triangle to the midpoint of the opposite side.

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14
Q

What is the equation for Pythatgorean Theorem?

A

a2+b2=c2

*A AND B ARE THE LENGTH OF THE LEGS AND C IS THE LENGTH OF THE HYPOTENEUSE*

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15
Q

Maximizing Area With A Fixed Perimeter:

When working with 4 sided shapes, what shape will always give you the largest perimeter?

A

A square

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16
Q

Maximizing Area With a Fixed Perimeter:

When working with a 3 sided shape, what dimesions give the largest shape possible?

A

Using 2 sides af if the shape were a square and the third side as double that dimesion.

Example: P= 20cm

Side 1: 5cm

Side 2: 5cm

Side 3: 10cm

17
Q

Maximizing Area With a Fixed Perimeter:

The sides of the rectangle have to be whole numbers. if this isnt possible what do you do?

A

The minimum perimeter occurs when the length and width are closest in value.

Example: A= Squrare Root Of 144

Length: 12

Height: 6