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Lesson details

Key learning points

  1. In this lesson, we will use different units of length to describe perimeter; calculate the perimeter of polygons and estimate the perimeter of 'curved' shapes.

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5 Questions

Q1.
Fill in the gap: Perimeter is a measure of the total _________ around the outside of a shape.
Correct answer: distance
estimate
space
Q2.
Fill in the gap: We record perimeter using units of __________, such as m, cm and mm.
Correct answer: distance
estimate
space
Q3.
Find the perimeter of this shape.
An image in a quiz
14cm
Correct answer: 18 cm
20cm
24cm
Q4.
One side of a square is 8m. What is the perimeter of the square?
16 m
Correct answer: 32 m
64 m
8 m
Q5.
A regular pentagon has a perimeter of 50mm. What is the length of one side of the pentagon?
10cm
Correct answer: 10mm
5cm
5mm

Lesson appears in

UnitMaths / Area of 2-D shapes