

Working out Perimeter/Circumference
Presentation
•
Mathematics
•
5th Grade
•
Medium
Simon Homer
Used 35+ times
FREE Resource
3 Slides • 10 Questions
1
Working out Perimeter/Circumference
How to work out the Perimeter or Circumference of shapes

2
Perimeter of Polygons (straight line shapes)
Polygons are shapes that have edges made up of straight lines (i.e. no curves/round edges), for example, squares, rectangles, triangles, pentagons, etc
To find the Perimeter we simply add up the lengths of all the sides
Remember: a square has sides all the same length
3
Multiple Choice
Perimeter of triangle?
32 units
20 units
10 units
17 units
4
Multiple Choice
12 in
22 in
18 in
24 in
5
Multiple Choice
Find the perimeter of this triangle.
26 cm
30 cm
21 cm
16 cm
6
Multiple Choice
What is the perimeter of the rectangle? (Hint: top matches the bottom, left matches the right!)
28 sq feet
28 feet
48 feet
48 sq feet
7
Multiple Choice
Farmer Jose built a fence around his rectangular pig's pen. The fence was 10 feet long and 7 feet wide. How many feet of fencing would he need for his pig's pen?
70 feet
17 feet
34 feet
36 feet
8
Multiple Choice
The diagram shows a regular hexagon.
What is its perimeter?
20
24
25
30
9
Multiple Choice
What is the perimeter of this shape?
33 cm
23 cm
36 cm
40 cm
10
Circumference of Circles (the distance around a circle)
11
Multiple Choice
Does this picture show the diameter or radius of a circle?
Diameter
Radius
12
Multiple Choice
What is the circumference of this circle using 3.14 for Pi?
CALCULATOR ALLOWED
3.14 cm
37.68 cm
24 cm
68.4 cm
13
Multiple Choice
The diameter of a bowl is 14 cm. What is the circumference of the bowl using 3.14 for Pi?
CALCULATOR ALLOWED
28 cm
43.96 cm
87.96 cm
7 cm
Working out Perimeter/Circumference
How to work out the Perimeter or Circumference of shapes

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