To calculate the area of an equilateral triangle, use the formula below: Area of An Equilateral Triangle = (√3)/4 × side2 Area of An Isosceles Triangle Area of an isosceles triangle = ¼ b√4a2-b2 ...

Learn about the area of triangles with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

Change the size and shape of triangle ABC by dragging points A, B, and C. Click the Create Copy button to make a copy of the purple triangle. Translate the yellow copy using point C, and rotate it ...

In this National 4 Lifeskills Maths study guide, you can revise how to find the perimeter and area of triangles, quadrilaterals (rectangle, parallelogram, rhombus, kite and square), circles, arcs ...