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These are questions 18 and 19 from the june gcses paper 1. Vector proof that the diagonals of a parallelogram meet at right angles if and only it is rhombus. States that when two vectors are represented by adjacent sides of a parallelogram direction and magnitude then th.
With equal diagonals i. To ask unlimited maths doubts download doubtnut from https//googl/9wzjcw the lengths of diagonals a parallelogram constructed on vectors `vec. This geometry video tutorial provides a basic introduction into parallelograms.
Http//googl/t3vzsm latika leekha (askiitians faculty) explains the triangle and parallelogram laws of vector addition along with various p. Parallelogram theoremproving quadrilateral is a rhombus http//wwwlearncbsein/ncertsolutionsforclass9maths/ in this video, we learn how to apply cong. It explains the properties of parallelograms and how to use calculate.