Take any quadrilateral such as ABCD above. Construct the midpoints of each side and join them to form another quadrilateral EFGH. Varignon's Theorem asserts that the ...

Polygons are 2D shapes with 3 or more straight sides. All quadrilaterals are polygons, but there are other types of polygons too. As you can see, some quadrilaterals share more properties than ...

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 ...

Interior angles in a triangle sum to a half turn (180˚). Quadrilaterals close quadrilateralA polygon with four straight sides. have four sides and four angles. Interior angles in a quadrilateral ...

Chapter 8 (Quadrilaterals) of Class 9 Maths NCERT Book in PDF format. You will get here the latest edition of the chapter for the current academic session 2021-2022. This chapter is important for ...

CBSE Class 9 Maths extra questions and answers for Chapter 8 - Quadrilaterals are important exam preparations. All these questions are based on important concepts given in the chapter that ...