Introduction to Curves

Q.

Find the value of 'x' from the figure.

1. 90°

2. 95°

3. 135°

4. 165°

Q. In the figure BD = DC and $\angle DBC={25}^{\circ }$. What is the value of $\angle BAC$?

1. ${30}^{\circ }$
2. ${50}^{\circ }$
3. ${90}^{\circ }$
4. ${100}^{\circ }$

Q. In the given figure, ABCD is a cyclic quadrilateral in which $\angle BAD={120}^{\circ }$. Find $\angle BCD$.

1. ${240}^{\circ }$
2. ${60}^{\circ }$
3. ${120}^{\circ }$
4. ${180}^{\circ }$

Q. Two circles intersect in A and B. Quadrilaterals PCBA and ABDE are inscribed in these circles such that PAE and CBD are line segments. If $\angle P={95}^{\circ }and\angle C={40}^{\circ }$. Find the value of $\angle DEA$.

1. ${65}^{\circ }$
2. ${95}^{\circ }$
3. ${105}^{\circ }$
4. ${85}^{\circ }$
   

Q. Which figure given below is a closed curve as well as a polygon?

1. 
2. 
3. 
4. 

Q. Match the following.

1. Line
2. Line segment
3. Ray

Q. The part of a line that connects two points is called a .

1. line segment
2. ray
3. line

Q. If two parallel lines are cut by a traversal, then alternate interior angles are and co-interior angles are

1. equal
2. unequal
3. supplementary
4. complementary

Q. A circle is made up of triangle(s).

1. 1
2. 3
3. infinite

Q. In the trapezium ABCD shown below, if $\angle ADC={120}^{\circ }$, then find the measure (in degrees) of $\angle DCB$.

1. 60