# Ex 3.4, 3 - Chapter 3 Class 8 Understanding Quadrilaterals

Last updated at Aug. 4, 2018 by Teachoo

Last updated at Aug. 4, 2018 by Teachoo

Transcript

Ex 3.4, 3 Explain how a square is. (i) a quadrilateral A quadrilateral has 4 sides A Square has 4 Sides ∴ It is a quadrilateral Square Square is a parallelogram with all sides equal and all angles 90° Properties of Square All sides are equal All angles are equal Diagonals are equal Diagonals bisect each other at right angles Ex 3.4, 3 Explain how a square is. (ii) a parallelogram A parallelogram has both pairs of opposite sides Parallel A Square has both pairs of opposite sides Parallel ∴ It is a Parallelogram. Square Square is a parallelogram with all sides equal and all angles 90° Properties of Square All sides are equal All angles are equal Diagonals are equal Diagonals bisect each other at right angles Ex 3.4, 3 Explain how a square is. (iii) a rhombus A rhombus is a parallelogram where all sides are equal A square is a parallelogram where all sides are of equal length ∴ It is a rhombus. Square Square is a parallelogram with all sides equal and all angles 90° Properties of Square All sides are equal All angles are equal Diagonals are equal Diagonals bisect each other at right angles Ex 3.4, 3 Explain how a square is. (iv) a rectangle A rectangle is a parallelogram where one angle is 90° A square is a parallelogram where all angles are 90° ∴ It is a rectangle Square Square is a parallelogram with all sides equal and all angles 90° Properties of Square All sides are equal All angles are equal Diagonals are equal Diagonals bisect each other at right angles

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Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.