Angles inside a shape are called interior angles. Interior angles in a triangle add up to 180°. Interior angles in a quadrilateral add up to 360°.
Part ofMathsAngle, symmetry and transformation
A rhombuscloserhombusA rhombus is a parallelogram with equal sides. has two pairs of opposite and equal angles. It is formed by joining two identical isosceles triangles base to base.
Its diagonals are not equal but cut each other in half at right angles.