180 Degrees or Straight Angle

Q. The measure of $\angle AOE$ is:

1. ${40}^{\circ }$
2. ${45}^{\circ }$
3. ${50}^{\circ }$
4. ${55}^{\circ }$

Q.
If $AB$ is parallel to $CD$, then $\angle MON=$

1. ${40}^{\circ }$
2. ${40}^{\circ }$
3. ${60}^{\circ }$

Q. Two sisters were having a pizza party after their mathematics exam. The pizza slices were in sector form with one arc and two radii. The younger sister ate a sector of pizza, subtending an angle of ${120}^o.$ Later, the elder sister offered her a sector of pizza subtending an angle of ${60}^o.$ What part of the pizza the younger sister had in total?

1. She ate ${\frac{3}{4}}^{th}$ of the pizza.
2. She ate half of the pizza.

Q. The measure of the angle between east and west is degrees.

Q. The measure of the angle between the hour hand and the minute hand at six O'Clock is degrees (value of angle in nearest integer).

Q.
For the diagram above, if $\angle 1$ is twice the value of $\angle 2$, then $\angle 2=$

1. ${30}^{\circ }$
2. ${20}^{\circ }$
3. ${40}^{\circ }$

Q. If $\angle COB={90}^{\circ }$, then $\angle AOB$ equals

1. ${62}^{\circ }$
2. ${72}^{\circ }$
3. ${82}^{\circ }$
4. ${92}^{\circ }$

Q. In the given figure, $OB\perp OC$, then the value of $\angle COD$ is:

1. ${50}^{\circ }$
2. ${55}^{\circ }$
3. ${60}^{\circ }$

Q. In the diagram above, $\angle DMQ$ is a right angle, and $\angle BMQ={36}^{\circ }$, then the value of $\angle 1=$

1. ${54}^{\circ }$
2. ${36}^{\circ }$
3. ${64}^{\circ }$

Q. In the given figure, $OB\perp OC$, then the value of $\angle COD$ is:

1. ${50}^{\circ }$
2. ${55}^{\circ }$
3. ${60}^{\circ }$

Q. If $\angle COB={90}^{\circ }$, then $\angle AOB$ equals

1. ${62}^{\circ }$
2. ${72}^{\circ }$
3. ${82}^{\circ }$
4. ${92}^{\circ }$

Q. The angle between two straight bars is ${30}^o.$

The bar B is rotated by ${45}^o$ in clockwise direction, whereas the bar A is rotated by ${105}^o$ in the anticlockwise direction. Find the final relative position of the bars.

1. The subtended angle between both bars will be ${180}^o$.
2. The subtended angle between both bars will be ${30}^o$.
3. They are exactly oppostite to each other.
4. None of the above.