1 Marks Question

Question 11 Mark

Fill in the blanks:
The common point of a tangent and the circle is called $..........$

Answer

The common point of a tangent and the circle is called point of contact.
In fig $AB$ is tangent line $P$ is point of contact between circles and tangent line.

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Question 21 Mark

Fill in the blanks:
The angle between tangent at a point on a circle and the radius through the point is $........$

Answer

The angle between tangent at a point on a circle and the radius through the point is $90^\circ$.

In fig, $AB$ is tengent line $P$ is point of contact $O$. $P$ is radius.
So, angle between $OP$ and $AB$ is $90^\circ$.

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Question 31 Mark

Fill in the blanks:
A tangent to a circle intersects in it ............ point(s).

Answer

$A$ tangent to a circle intersects in it one point$(s)$.
In fig $AB$ is tengent line.
$P$ is point of contact between circle and tangent line.

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Question 41 Mark

Fill in the blanks:
A circle may have .............. parallel tangents.

Answer

A circle may have two parallel tangents.

In fig. $AB$ is tengent line of circle at point $P$.
$CD$ is tangent line of circle at point $Q$.
$\therefore$ both $AB$ and $CD$ are parallel to each other.

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Question 51 Mark

Fill in the blanks:
A line intersecting a circle in two points is called a ..........

Answer

A line intersecting a circle in two points is called a Secant.

In fig $AB$ is secant.
$AB$ intersect a circle in $2$ point $P$ and $Q$.

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Maths 1 Marks Question

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