ZACH: Oh yes, it must be an isosceles triangle because it has two equal sides.That other side is also 6 metres then, and we know the perimeter is 14.How do we get that missing side? KAYLA ...

Types of triangle Find out about scalene, equilateral, isosceles and right-angled triangles ... regular and irregular polygons. What is the perimeter? Discover how to work out the area of a ...