Classify the marked angle as acute, right, obtuse, straight or a reflex angle :
Question types
Lines and Angles question types
123 questions across 7 question groups — pick any mix to generate a MATHS paper with step-by-step answer keys.
123
Questions
7
Question groups
5
Question types
01
[1 Mark Question Answer]
27 Q→02[2 Mark Question Answer]
39 Q→03[3 marks sum]
25 Q→04[4 marks sum]
4 Q→05TRUE / FALSE
5 Q→06Fill in the blanks.
5 Q→07MCQ
18 Q→Sample Questions
Lines and Angles questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
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Classify the marked angle as acute, right, obtuse, straight or a reflex angle :
Classify the marked angle as acute, right, obtuse, straight or a reflex angle :
Classify the marked angle as acute, right, obtuse, straight or a reflex angle :
Classify the marked angle as acute, right, obtuse, straight or a reflex angle :
In the figure given below, $A B \| C D$. Find the unknown angles, giving reasons.
View full solution →In the figure given below, $A B \| C D$. Find the unknown angles, giving reasons.
View full solution →In the figure given below, $A B \| C D$. Find the unknown angles, giving reasons.
View full solution →In the figure given below, $A B \| C D$. Find the unknown angles, giving reasons.
View full solution →In the figure given below, $A B \| C D$. Find the unknown angles, giving reasons.
View full solution →In the figure $A B \| C D$. Find the unknown angles, giving reasons.
View full solution →In the figure $A B \| C D$. Find the unknown angles, giving reasons.
View full solution →In the given figure, $AB \| CD$. If $\angle BAC =(3 x+15)^{\circ}$ and $\angle ACD =(2 x+45)^{\circ}$, find the value of $x$.
Also, find the measures of $\angle BAC$ and $\angle ACD$.
View full solution →Also, find the measures of $\angle BAC$ and $\angle ACD$.
In the given figure, $AB \| CD$. If $\angle BAC =(3 x+15)^{\circ}$ and $\angle ACD =(2 x+45)^{\circ}$, find the value of $x$.
Also, find the measures of $\angle BAC$ and $\angle ACD$.
View full solution →Also, find the measures of $\angle BAC$ and $\angle ACD$.
In the given figure, $AB \| CD$. If $\angle BAC =(3 x+15)^{\circ}$ and $\angle ACD =(2 x+45)^{\circ}$, find the value of $x$.
Also, find the measures of $\angle BAC$ and $\angle ACD$.
View full solution →Also, find the measures of $\angle BAC$ and $\angle ACD$.
Two lines $A B$ and $C D$ are cut by a transversal $E F$, as shown in the figure. Identify the given pair of angles as adjacent angles, vertically opposite angles, alternate angles, corresponding angles or co-interior angles.
(i) $\angle 6$ and $\angle 7$
(ii) $\angle 3$ and $\angle 4$
(iii) $\angle 4$ and $\angle 8$
(iv) $\angle 1$ and $\angle 5$
(v) $\angle 3$ and $\angle 5$
(vi) $\angle 2$ and $\angle 4$
(vii) $\angle 4$ and $\angle 5$
(viii) $\angle 2$ and $\angle 7$
(ix) $\angle 3$ and $\angle 6$
(x) $\angle 4$ and $\angle 6$
(xi) $\angle 2$ and $\angle 6$
(xii) $\angle 1$ and $\angle 4$
View full solution →(i) $\angle 6$ and $\angle 7$
(ii) $\angle 3$ and $\angle 4$
(iii) $\angle 4$ and $\angle 8$
(iv) $\angle 1$ and $\angle 5$
(v) $\angle 3$ and $\angle 5$
(vi) $\angle 2$ and $\angle 4$
(vii) $\angle 4$ and $\angle 5$
(viii) $\angle 2$ and $\angle 7$
(ix) $\angle 3$ and $\angle 6$
(x) $\angle 4$ and $\angle 6$
(xi) $\angle 2$ and $\angle 6$
(xii) $\angle 1$ and $\angle 4$
Find an angle which is one-fifth of its supplement.
Find an angle which is two-thirds of its complement.
When two parallel lines are cut by a transversal, then the exterior opposite angles are supplementary.
A line which intersects two other lines at their point of intersection is called a transversal.
When two straight lines cut each other, the sum of any two adjacent angles formed is $180^{\circ}$.
View full solution →The sum of the angles of a linear pair is $180^{\circ}$.
View full solution →An angle whose measure is $90^{\circ} $ is called a straight angle.
View full solution →Two lines are said to be _________ to each other if they intersect at right angles.
Two intersecting lines make _________ pairs of vertically opposite angles.
A pair of adjacent angles is said to be a ___________ if these angles have one arm common and other arms as opposite rays.
A straight line that intersects two or more lines in a plane is called a _________.
An angle whose measure is more than 180° but less than 360° is called a ________.
The value of x in the given figure is
- A$24^{\circ}$
- ✓$28^{\circ}$
- C$36^{\circ}$
- D$42^{\circ}$
Answer: B.
View full solution →An angle is 80° less than three times its supplement. The angle is
- A$75^{\circ}$
- B$85^{\circ}$
- C$105^{\circ}$
- ✓$115^{\circ}$
Answer: D.
View full solution →The measures of two supplementary angles are in the ratio 4: 11. What is the measure of the greater angle?
- A$106^{\circ}$
- B$121^{\circ}$
- ✓$132^{\circ}$
- D$154^{\circ}$
Answer: C.
View full solution →The measures of two complementary angles are in the ratio 1: 5. What is the measure of the smaller angle?
- ✓$15^{\circ}$
- B$20^{\circ}$
- C$25^{\circ}$
- D$30^{\circ}$
Answer: A.
View full solution →A pair of complementary angles is
- A$42^{\circ} 16^{\prime}, 47^{\circ} 34^{\prime}$
- ✓$34^{\circ} 10^{\prime}, 55^{\circ} 50^{\prime}$
- C$53^{\circ} 27^{\prime}, 29^{\circ} 33^{\prime}$
- D$19^{\circ} 26^{\prime}, 70^{\circ} 36^{\prime}$
Answer: B.
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