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Vidaara.orgClass 3 · Mathematics
CodeVID-M03-05-PER-01
Perimeter by Adding Sides - Assignment
Chapter: Perimeter
Topic: Find Perimeter by Adding Sides
Maximum Marks: 35
Time: 75 minutes
Name: ____________________ Roll No.: __________ Date: ____________

General Instructions

  • 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.
Perimeter is the total distance:
  • A.inside a shape
  • B.around a shape
  • C.across a shape
  • D.under a shape
2.
To find the perimeter, you ___ the side lengths.
  • A.add
  • B.multiply
  • C.subtract
  • D.divide
3.
A square has how many equal sides?
  • A.$3$
  • B.$4$
  • C.$5$
  • D.$6$
4.
A square of side $6$ has perimeter:
  • A.$12$
  • B.$18$
  • C.$24$
  • D.$36$
5.
Perimeter is measured in:
  • A.square units
  • B.units (cm, m)
  • C.cubic units
  • D.degrees
Section B — Short Answer (2 marks) 4 × 2 = 8 marks
6.
A triangle has sides $3$, $4$ and $5$ cm. Find the perimeter.
7.
A square has side $6$ cm. Find the perimeter.
8.
A rectangle is $5$ cm by $3$ cm. Find the perimeter.
9.
Add the sides $2, 2, 2, 2$.
Section C — Short Answer (3 marks) 4 × 3 = 12 marks
10.
A rectangle is $8$ cm by $5$ cm. Find its perimeter.
11.
A square has side $9$ cm. Find its perimeter.
12.
A triangle has sides $7$, $7$ and $10$ cm. Find the perimeter.
13.
A 4-sided shape has sides $3, 5, 4, 6$ cm. Find the perimeter.
Section D — Long Answer (5 marks) 2 × 5 = 10 marks
14.
A garden is a rectangle $12$ m by $8$ m. Find the length of fence needed to go all around it.
15.
A square photo frame has a side of $15$ cm. Find the total length of its border.

Answer Key

Section A — Multiple Choice Questions
  1. (B) around a shape
  2. (A) add
  3. (B) $4$
  4. (C) $24$
  5. (B) units (cm, m)
Section B — Short Answer (2 marks)
  1. $12$ cm.
  2. $24$ cm.
  3. $16$ cm.
  4. $8$.
Section C — Short Answer (3 marks)
  1. $26$ cm.
  2. $36$ cm.
  3. $24$ cm.
  4. $18$ cm.
Section D — Long Answer (5 marks)
  1. $40$ m.
  2. $60$ cm.
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