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Regular and irregular polygons

4th grade (Year 5 in England) · 16 questions · Common Core: 4.G.A.2 · England: Y5 Geometry

Name

Date

Score/ 16

1
Question 1
Is an isosceles triangle that is not equilateral a regular polygon?
- A. yes
- B. no
Question 2
A regular octagon has sides of 14 cm. What is its perimeter?
Answer
3
Question 3
Is an isosceles triangle that is not equilateral a regular polygon?
- A. yes
- B. no
Question 4
A regular decagon has sides of 14 cm. What is its perimeter?
Answer
5
Question 5
Is an isosceles triangle that is not equilateral a regular polygon?
- A. yes
- B. no
Question 6
A regular triangle has sides of 7 cm. What is its perimeter?
Answer
7
Question 7
Is an isosceles triangle that is not equilateral a regular polygon?
- A. yes
- B. no
Question 8
A regular pentagon has sides of 14 cm. What is its perimeter?
Answer
9
Question 9
Is an equilateral triangle a regular polygon?
- A. yes
- B. no
Question 10
A regular hexagon has sides of 10 cm. What is its perimeter?
Answer
11
Question 11
Is an isosceles triangle that is not equilateral a regular polygon?
- A. yes
- B. no
Question 12
A regular triangle has sides of 12 cm. What is its perimeter?
Answer
13
Question 13
Is a square a regular polygon?
- A. yes
- B. no
Question 14
A regular quadrilateral has sides of 14 cm. What is its perimeter?
Answer
15
Question 15
Is a rectangle that is not a square a regular polygon?
- A. yes
- B. no
Question 16
A regular quadrilateral has sides of 5 cm. What is its perimeter?
Answer

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Answer key: Regular and irregular polygons