TRIGO Flashcards

1
Q

A space between two rays that extend from a common point called the vertex

A

Angle

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2
Q

Angles less than 90 degrees

A

Acute Angle

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3
Q

Angles equal to 90 degrees

A

Right Angle

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4
Q

Angles greater than 90 degrees

A

Obtuse Angle

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5
Q

Angle equal to 180 degrees

A

Straight Angle

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6
Q

Angles greater than 180 degrees

A

Reflex Angle

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7
Q

Two angles whose sum is 90 degrees

A

Complementary

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8
Q

Two angles whose sum is 180 degrees

A

Supplementary

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9
Q

Two angles whose sum is 360 degrees

A

Explementary

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10
Q

Interval over which the graph of a function repeats

A

Period

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11
Q

Greatest distance of any point on the graph from a horizontal line which passes halfway between the maximum and minimum values of the function

A

Amplitude

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12
Q

Number of repetitions or cycles per unit of time

A

Frequency

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13
Q

Line drawn from one vertex to the midpoint of its opposite side

A

Median of Triangle

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14
Q

Intersect at a common point called the centroid of the triangle

A

Median of Triangle

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15
Q

Point of intersection of medians of a triangle

A

Centroid

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16
Q

Line drawn from one vertex perpendicular to its opposite side

A

Altitude of Triangle

17
Q

Intersect at a point called the orthocenter of the triangle

A

Altitude of Triangle

18
Q

Point of intersection of the altitudes of the triangle

A

Orthocenter

19
Q

Line drawn from one vertex to the opposite side bisecting the included angle between the other two sides

A

Angle Bisector of Triangle

20
Q

Intersect at a point called the incenter of the triangle

A

Angle Bisector of Triangle

21
Q

Point of intersection if angle bisectors of a triangle

22
Q

Center of inscribed circle

23
Q

Largest circle that can fit inside the triangle and touch all three sides

24
Q

Point of intersection of the perpendicular bisectors of the triangle

A

Circumcenter

25
Center of the circumscribed circle
Circumcenter
26
Circle that passes through all the vertices of the triangle
Circum-circle
27
Circle tangent to one side of the triangle and prolongation of the other two sides
Escribed Circle (Ex-Circle)
28
Circle on the surface of a sphere, whose plane passes through the center of the sphere
Great Circle
29
Circle constructed by a plane crossing the sphere not in its center
Small Circle
30
An angle formed by the intersection of two great circles
Spherical Angle
31
A triangle on the surface of the sphere formed by the intersection of three great circles
Spherical Triangle
32
Least distance on a sphere from a point on the circle to its pole
Polar Distance
33
Angular distance of the point from the equator ranges from 0 to 90 degrees at the poles
Latitude
34
Angular distance between the prime meridian and the meridian through the point ranges from 0 and the prime meridian to 180 degrees eastward and -180 degrees westward
Longitude