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How many sides has a square got? (4)

So if all the sides are 6cm.

Perimeter = 6 + 6 + 6 + 6

How many sides does an equilateral triangle have? (3)

All the sides are the same length in these shapes so again:

Perimeter = 6 + 6 + 6

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Can you make a triangle with 6cm 6cm 6cm?

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Your square must have sides of 6cm so perimeter is 24cm.


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Perimeter = 6cm + 6cm + 9cm + 9cm = 30cm


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What shape has an area of 6cm but perimeter of 12cm?

A right angle triangle fits the dimensions given


How many triangles have the perimeter of 15cm?

To determine the number of triangles with a perimeter of 15cm, we need to consider the possible side lengths that can form a triangle. The triangle inequality theorem states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side. With a perimeter of 15cm, the possible side lengths could be (5cm, 5cm, 5cm) for an equilateral triangle, (6cm, 5cm, 4cm) for an isosceles triangle, or (7cm, 5cm, 3cm) for a scalene triangle. Therefore, there are 3 possible triangles that can have a perimeter of 15cm.


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