Question 1 :
State true or false:<br/>If angles forming a linear pair are of equal measure, then each of these angles is of measure $90^o$<br/>
Question 3 :
State true or false:If two lines intersect and one of the angles so formed is a right angle, then the other three angles will not be right angles.<br/>
Question 4 :
The angles of a triangle are in the ratio 2: 1: 3. Is the triangle right-angled triangle,
Question 7 :
$\Delta ABC$ is a right angled at A, the value of tan B $\times$ tan C is:<br/>
Question 10 :
In $\Delta ABC$, if $\angle A+\angle B=90^{\circ}$, cot $B=\dfrac{3}{4}$, then the value of tan A is :<br/>
Question 11 :
In a $\triangle ABC$, the sides AB and AC have been produced to D and E. Bisectors of $\angle CBD$ and $\angle BCE$ meet at O. If $\angle A={ 64 }^{ 0 }$, then $\angle BOC$ is
Question 12 :
A pair of lines which do not intersect at any point are called
Question 13 :
State true or false.The sum of interior angles of a triangle is ${ 180 }^{ \circ  }$.
Question 15 :
Based on the angle measures given, which triangle is not acute?
Question 16 :
If the angles of a triangle are in the ratio 2:3:4, find the three angles.<br/>
Question 19 :
An angle which is more than  $\displaystyle 180^{0}$ and less than $\displaystyle 360^{0}$ is called
Question 20 :
If the sum of two adjacent angles is $100^{\circ}$ and one of them is $35^{\circ}$, then the other is :<br>
Question 22 :
State the following statement is True or False<br>If two parallel lines are cut by transversal, then the pair of alternate interior angles are not equal
Question 25 :
$\angle\,A$ is supplementary to $\angle\, B,\, \angle\, B$ is complementary to$\angle\, C$. If $\angle\, A\, =\, 118^\circ$, what is the measure of$\angle\, C$ ?
Question 28 :
If one acute angle of the right angled triangle is half of the other then the smallest angle is
Question 30 :
Which has a greater measure:<br>(i)an angle complementary to $15^{\circ}$<br>(ii)an angle supplementary to$125^{\circ}$
Question 31 :
A pair of angles with a common vertex and common arm are called
Question 32 :
When two line segments meet at a point forming right angle they are said to be ..........to each other.
Question 34 :
If two lines intersect such that four vertical angles are equal, then each angle is:
Question 35 :
If measure of one angle of linear pair is $102^{\circ}$, then the measure of second angle is $ 78^{\circ}$.
Question 37 :
The numbers of points of intersection of $2y=1$ and $y=\sin\,x$, in $-2\pi\le x\le 2\pi$ is
Question 42 :
The measure of an angle is three times the measure of its complement. The angles are:
Question 43 :
Two angles are supplementary and one angle is twice the other angle then, find the both angles.
Question 44 :
State whether the following statement is True or False.<br/>If two lines intersect each other,then the vertically opposite angles are equal.
Question 45 :
Two angles are complementary. One angle is $80\%$ of the other angle. The two angles are
Question 46 :
State true (T) or false( F)<br>lines which meet at a common point are called parallel lines
Question 47 :
The angle between the internal and the external bisectors of an angle of a triangle is ___________.
Question 48 :
Find the supplement of the angle :$\dfrac{2}{5}$ of a right angle