have three sides, therefore they have three angles. Interior angles in a triangle sum to a half turn (180˚). Quadrilaterals close quadrilateralA polygon with four straight sides. have four sides ...

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. What is a quadrilateral? A quadrilateral is a four-sided shape where each of the sides are straight ...

Check NCERT Solutions for Class 8 Maths, Chapter 3 ... quadrilateral which is not convex (as shown above). 4. Examine the table. (Each figure is divided into triangles and the sum of the angles ...