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Interactive video lesson plan for: Mid point theorem | Mid point theorem Application | Triangle Intercept Theorem

Activity overview:

Mid point theorem | Mid point theorem Application | Triangle Intercept Theorem
http://www.learncbse.in/ncert-solutions-for-class-9-maths/

00:02 CBSE class 9 maths NCERT Solutions chapter 8 Quadrilaterals q9 q1. ABCD is a quadrilateral in which P, Q, R and S are mid-points of the sides AB, BC, CD and DA (see Fig 8.29). AC is a diagonal. Show that :
(i) SR || AC and SR = 1/2AC (ii) PQ = SR (iii) PQRS is a parallelogram.
01:32 Proof
02:03 Application of Mid point theorem.Mid point theorem states that the line segment joining the mid-points of two sides of a triangle is parallel to the third side.
04:04 Apply property of parallelogram: Opposite sides are equal & Opposite angels are equal
04:20 CBSE class 9 maths NCERT Solutions chapter 8 Quadrilaterals q9 Q2 ABCD is a rhombus and P, Q, R and S are ©wthe mid-points of the sides AB, BC, CD and DA respectively. Show that the quadrilateral PQRS is a rectangle.
06:06 Proof
06:36 cosidrer similarity of triangles.
09:20 Apply Mid point theorem.Mid point theorem states that the line segment joining the mid-points of two sides of a triangle is parallel to the third side.
12:14 CBSE class 9 maths NCERT Solutions chapter 8 Quadrilaterals q9 q3 ABCD is a rectangle and P, Q, R and S are mid-points of the sides AB, BC, CD and DA respectively. Show that the quadrilateral PQRS is a rhombus.
12:54 Proof
13:20 Concider two triangles and apply mid point theorem.Mid point theorem states that the line segment joining the mid-points of two sides of a triangle is parallel to the third side.
14:32 Use property of parallelgram : Opposite angels are equal & Opposite sides are equal.
16:32 q4 ABCD is a trapezium in which AB || DC, BD is a diagonal and E is the mid-point of AD.A line is drawn through E parallel to AB intersecting BC at F (see Fig. 8.30). Show that F is the mid-point of BC.
17:25 Proof
18:18 Use of converse of Mid point theorem.Mid point theorem states that the line segment joining the mid-points of two sides of a triangle is parallel to the third side.
19:25 CBSE class 9 maths NCERT Solutions chapter 8 Quadrilaterals q9 q5 In a parallelogram ABCD, E and F are the mid-points of sides AB and CD respectively (see Fig. 8.31). Show that the line segments AF and EC trisect the diagonal BD.
20:45 APPLY property of parallelgram : Opposite angels are equal & Opposite sides are equal.
22:19 Here we learn how to collect relevant imformation to apply converce of Mid point theorem .Converce of Mid point theorem states that the line drawn through the mid-point of one side of a triangle, parallel to another side bisects the third side
24:28 CBSE class 9 maths NCERT Solutions chapter 8 Quadrilaterals q9 q6 Show that the line segments joining the mid-points of the opposite sides of a quadrilateral bisect each other.
26:15 Aim of so;ving problem
26:30 Analyse triangle to pull relevant imformation and apply converce of Mid point theorem.Converce of Mid point theorem states that the line draw

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learncbse.in
CBSE solutions for class 9 maths Quadrilaterals
CBSE class 9 maths chapter 8 Quadrilaterals

solve converse of mid point theorem problems
midpointtheoremclass9
information about mid point theorem
converse mid point theorem examples
mid point theorem proof
Triangle Intercept theorem
Basic Proportionality Theorem

Tagged under: GyanPub,ncert solutions,Free Online Maths Class,Maths,Free ncert solutions,CBSE solutions class 9 maths Quadrilaterals,NCERT solutions class 9 maths Quadrilaterals,CBSE Class 9 maths solutions Quadrilaterals,Basic Proportionality Theorem,converse mid point theorem examples,information mid point theorem,solve converse mid point theorem problems,Triangle Intercept theorem

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