Question # 1

The tangent and radius of a circle at the point of contact are _________:

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Parallel

Not perpendicular

Perpendicular

None of these

If the angles subtended by two chords of a circle (or congruent circles) at the centre (corresponding centre) are equal, the ______ are equal:

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Lines

Segments

Chords

Arcs

A circle of any radius can be constructed by rotating a compass about:

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A chord

An arc

The straight line

A fixed point

y co-ordinate of every pint on x-axis is.

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+ve

-Ve

zero

1

A grouped frequency table is also called.............

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Data

Frequency distribution

Frequency polygon

Histogram

A tangent line intersects the circle at:

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Three points

Twopoints

Single point

No point at all

The radius of a circumscribed circle is called:

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Circum-radius

Escribed-radius

In-radius

Radius

The circumference of a circle is:

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The measure of central tendency which is not affected by extreme values is called:

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Median

Arithmetic mean

Geometric mean

None of these

Product of the roots of the equation 3x²-5x+7=0:

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3⁷

7³

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

The class having maximum frequency is called................. class.

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Model

Median

Lower

Upper

The ratio of a and b is written as:

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a : : b

a : b

a = b

Sin (-310^o) = ...................

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Sin310^o

-Sin310^o

Cos310^o

tan310^o

If R ={(0,2),(2,3),(3,4)} then Dom (R) is:

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{0,3,4}

{0,2,3}

{0,2,4}

{2,3,4}

The discriminant of x²-3x+3=0 is:

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-3

3

-2

2

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