Can you find the of this polygon?
Find the perimeter of the figure shown.
Rectangles are a special kind of polygon, and they have special features that we can use to work out the perimeter. With two pairs of equal sides, we can work out the perimeter by adding the length and width and doubling it.
Find the perimeter of the rectangle shown.
Perimeter is all about the distance around the outside of our shape, so the perimeter of a triangle means adding 3 sides together. We can calculate the perimeter of equilateral, isosceles and scalene triangles, using what we know about those triangles, to help with missing values.
Let's see what features each of those triangles have, and how it can help us work out the perimeter of the triangle.
Find the perimeter of an equilateral triangle with a side length of 5 mm.
selects and uses the appropriate unit and device to measure lengths and distances, calculates perimeters, and converts between units of length