If there are 36 spokes in a bicycle wheel, the angle between a pair of adjacent spokes is
- A$15^{\circ}$
- B$12^{\circ}$
- ✓$10^{\circ}$
- D$18^{\circ}$
Answer: C.
View full solution →Question types
Lines and Angles [NEW] question types
38 questions across 3 question groups — pick any mix to generate a MATHS paper with step-by-step answer keys.
38
Questions
3
Question groups
5
Question types
Sample Questions
Lines and Angles [NEW] questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
$\frac{3}{2}$ right angles = ?
- A$115^{\circ}$
- ✓$135^{\circ}$
- C$270^{\circ}$
- D$230^{\circ}$
Answer: B.
View full solution →2 right angles = ?
- A$90^{\circ}$
- ✓$180^{\circ}$
- C$270^{\circ}$
- D$360^{\circ}$
Answer: B.
View full solution →A reflex angle measures
- Amore than $180^{\circ}$ but less than $270^{\circ}$
- ✓more than $180^{\circ}$ but less than $360^{\circ}$
- Cmore than $90^{\circ}$ but less than $180^{\circ}$
- Dnone of these
Answer: B.
View full solution →An angle measuring $360^{\circ}$ is
- Aa reflex angle
- Ban obtuse angle
- Ca straight angle
- ✓a complete angle
Answer: D.
View full solution →Assertion (A): An angle measuring $270^{\circ}$ is a reflex angle.
Reason (R): An angle measuring more than 180° but less than $360^{\circ}$ is called a reflex angle.
Reason (R): An angle measuring more than 180° but less than $360^{\circ}$ is called a reflex angle.
- ✓Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
- BBoth Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of Assertion (A).
- CAssertion (A) is true but Reason (R) is false.
- DAssertion (A) is false but Reason (R) is true.
Answer: A.
View full solution →Assertion (A): The sum of an acute angle and an obtuse angle can be equal to a straight angle.
Reason (R): Two obtuse angles together can make a complete angle.
Reason (R): Two obtuse angles together can make a complete angle.
- ABoth Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
- BBoth Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of Assertion (A).
- ✓Assertion (A) is true but Reason (R) is false.
- DAssertion (A) is false but Reason (R) is true.
Answer: C.
View full solution →Assertion (A): An angle measuring $360^{\circ}$ is called a reflex angle.
Reason (R): A reflex angle measures more than $180^{\circ}$.
Reason (R): A reflex angle measures more than $180^{\circ}$.
- ABoth Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
- BBoth Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of Assertion (A).
- CAssertion (A) is true but Reason (R) is false.
- ✓Assertion (A) is false but Reason (R) is true.
Answer: D.
View full solution →Assertion (A): The standard unit of measuring an angle is degree.
Reason (R): A straight angle is equal to $180^{\circ}$.
Reason (R): A straight angle is equal to $180^{\circ}$.
- ABoth Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
- ✓Both Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of Assertion (A).
- CAssertion (A) is true but Reason (R) is false.
- DAssertion (A) is false but Reason (R) is true.
Answer: B.
View full solution →Assertion (A): The vertex is the common initial point of the two rays forming the angle.
Reason (R): The two rays forming an angle are called the two legs of the angle.
Reason (R): The two rays forming an angle are called the two legs of the angle.
- ABoth Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
- BBoth Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of Assertion (A).
- ✓Assertion (A) is true but Reason (R) is false.
- DAssertion (A) is false but Reason (R) is true.
Answer: C.
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