Скачать или смотреть Solutions Explained Questions# Q1 to Q4 Exercise# 8.2 Quadrilaterals Chapter# 8 Class 9 Maths NCERT

Solutions Explained Questions# Q1 & Q4 Exercise# 8.2 Quadrilaterals Chapter# 8 Class 9 Maths NCERT

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00:00 Exercise 8.2 Q1 to Q4
00:48 Question 1 : 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||ACandSR= 1/2 AC
(ii) PQ = SR
(iii) PQRSisaparallelogram.
05:22 Question 2 : ABCD is a rhombus and P, Q, R and S are the mid-points of the sides AB, BC, CD and DA respectively. Show that the quadrilateral PQRS is a rectangle.
12:08 Question 3 : 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.
18:08 Question 4 : 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.