They can all be drawn having at least one right interior angle. For a shape to be considered right-angled, the 90-degree angle has to be in the interior of the shape. Some shapes have particular names assigned to them when they contain a right angle. When a triangle has a right angle...
Can an acute triangle be a right triangle? Can a right triangle also be an isosceles triangle? How to divide an equilateral triangle into two right triangles? Find the area of an equilateral triangle if a side is 8\sqrt{3} m. Find the area of the following equilateral triangle. Is an ...