Mathematics

Q.

Match the following

1. 1- c; 2- a; 3- b

2. 1- c; 2- b; 3- a

3. 1- a; 2- c; 3- b

4. 1- a; 2- b; 3- c

Q.

In $\Delta ABD$, AB = AD and AC is perpendicular to BD. State the congruence rule by which $\Delta ACB\cong \Delta ACD$.

1. ASA congruence rule

2. SAS congruence rule

3. SSS congruence rule

4. RHS congruence rule

Q. In $△ABC$, if $\angle B=\angle C={45}^{\circ }$, then which of the following is/are the longest side(s)?

1. AB and BC
2. BC
3. AC
4. AB

Q.

An obtuse-angled triangle is one in which all the angles are less than 90°

1. True
2. False

Q. Burst the angles which can form the triangle

1. $30°,60°,90°$
2. $120°,20°,40°$
3. $90°,30°,80°$
4. $110°,50°,70°$
5. $20°,70°,50°$
6. $80°,40°,60°$
7. $70°,50°,60°$
8. $160°,10°,10°$
9. $110°,120°,50°$

Q. If exactly two sides of a triangle are equal, then it is called a/an _______.

1. scalene triangle
2. obtuse angled triangle
3. equilateral triangle
4. isosceles triangle

Q.

State whether the given statement is true or false:

The angle of depression is the angle between the line of sight of an observer and the object below his horizontal line of sight.

1. False

2. True

Q.

In the fig. below, if AB || CD, $\angle$APQ = 50${}^{\circ }$ and $\angle$PRD = 127${}^{\circ }$, find x and y.

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1. 50${}^{\circ }$, 67${}^{\circ }$

2. 50${}^{\circ }$, 77${}^{\circ }$

3. 77${}^{\circ }$, 87${}^{\circ }$

4. 77${}^{\circ }$, 97${}^{\circ }$

Q. In the adjoining figure the value of x is?

1. ${25}^{\circ }$
2. ${29}^{\circ }$
3. ${26}^{\circ }$
4. ${28}^{\circ }$

Q. If AB || CD and T is a transversal then the measurement of $\angle n$ is:

1. $22{\frac{1}{2}}^{\circ }$
2. ${90}^{\circ }$
3. ${60}^{\circ }$
4. ${45}^{\circ }$