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Vidaara.orgClass 6 · Mathematics
CodeVID-M6-00-CT
Angle Relationships — Full Chapter Test
Chapter: Angle Relationships
Topic: Complete chapter — all topics
Maximum Marks: 35
Time: 75 minutes
Name: ____________________ Roll No.: __________ Date: ____________

General Instructions

  • This is a full-length test covering the whole chapter — every topic is included.
  • All questions are compulsory.
  • Section A carries 1 mark each, Section B 2 marks, Section C 3 marks and Section D 5 marks.
  • Show all working for Sections B, C and D. Only final answers are given at the end — for full solutions, raise your doubts with your teacher.
Section A — Multiple Choice Questions 5 × 1 = 5 marks
1.
Complementary angles sum to:
  • A.$90^\circ$
  • B.$180^\circ$
  • C.$360^\circ$
  • D.$45^\circ$
2.
Vertically opposite angles are:
  • A.supplementary
  • B.equal
  • C.complementary
  • D.zero
3.
The angles of a triangle sum to:
  • A.$90^\circ$
  • B.$180^\circ$
  • C.$270^\circ$
  • D.$360^\circ$
4.
Supplementary angles sum to:
  • A.$90^\circ$
  • B.$180^\circ$
  • C.$360^\circ$
  • D.$270^\circ$
5.
Adjacent angles share a common vertex and:
  • A.area
  • B.arm
  • C.colour
  • D.length
Section B — Short Answer (2 marks) 4 × 2 = 8 marks
6.
Find the complement of $35^\circ$.
7.
Vertically opposite angles are always:
8.
Two angles are $40^\circ$ and $75^\circ$. Find the third.
9.
Find the supplement of $100^\circ$.
Section C — Short Answer (3 marks) 4 × 3 = 12 marks
10.
The complement of an angle is $25^\circ$. Find the angle.
11.
Two lines cross; one angle is $65^\circ$. Find all four angles.
12.
The angles are in ratio $1:2:3$. Find them.
13.
The supplement of an angle is $140^\circ$. Find the angle.
Section D — Long Answer (5 marks) 2 × 5 = 10 marks
14.
Two complementary angles are in the ratio $4:5$. Find both angles.
15.
Two straight lines intersect and one angle is $3$ times its adjacent angle. Find all four angles.

Answer Key

Section A — Multiple Choice Questions
  1. (A) $90^\circ$
  2. (B) equal
  3. (B) $180^\circ$
  4. (B) $180^\circ$
  5. (B) arm
Section B — Short Answer (2 marks)
  1. $55^\circ$.
  2. Equal.
  3. $65^\circ$.
  4. $80^\circ$.
Section C — Short Answer (3 marks)
  1. $65^\circ$.
  2. $65^\circ, 115^\circ, 65^\circ, 115^\circ$.
  3. $30^\circ, 60^\circ, 90^\circ$.
  4. $40^\circ$.
Section D — Long Answer (5 marks)
  1. $40^\circ$ and $50^\circ$.
  2. $45^\circ, 135^\circ, 45^\circ, 135^\circ$.
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