Question # 1

The circumference of a circle is called _________ of a circle:

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Chord

Arc

Radius

Boundary

The boundary of a circle is called:

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Circumference

Arc

Line

Area

Sec² θ -tan²θ =______________.

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sec²θ

cos²θ

1

sin²θ

Tangents drawn at the end points of the diameter of a circle are:

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Parallel

Perpendicular

Intersecting

From a point outside the circle __________ tangents can be drawn:

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One

Two

Three

Four

The n^th positive root of the product of the x₁,x₂,x₃..................x_n observations is called:

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Mode

Mean

Geometric mean

Co sec 30^o = .................

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1/2

√3/2

2

2/√3

The sum of the squares of sides of a rhombus is equal to the sum of the squares of its:

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Sides

Diagonlas

Medians

Altitude

3π/4 radian =

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115^o

135^o

150^o

30^o

Sin²θ +Cos²θ =..................

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tan²θ

Cos²θ

1

0

Mean of a variable with similar observations say constant k is............

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Negative

K- itself

zero

one

O - E = ............

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∅

O

E

Z

The semi circumference, and the diameter of a circle both subtend a central angle of:

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90°

180°

270°

360°

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Cos 30^o =.....................

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1/2

√3/2

2

2/√3

20^o = _______________________________

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360'

630'

1200'

360'

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