The figure formed by joining the midpoints of the adjacent sides of a rectangle of sides 8cm and 6cm is a

Given: A rectangle with sides 8cm and 6cm.


Consider the Rectangle ABCD


Here DR = RD = AP = PB = 8/2 = 4cm ( P and R are the midpoints of DC and AB respectively)


and AS = SD = BQ = QC = 6/2 = 3cm( S and Q are the midpoints of AD and BC respectively)


Now, consider the ΔRSD


By Pythagoras theorem


SR2 = SD2 + DR2


SR2 = 32 + 42


SR2 = 9 + 16


SR2 = 25


SR = 5 cm


Similarly using Pythagoras theorem in ΔQRC , ΔPBQ and ΔAPS


We get RQ = QP = PS = 5cm


SR = RQ = QP = PS = 5cm


PQSR is Rhombus of side length 5cm


Area of the rhombus is given by:


Area of the rhombus = = = 24cm2


Area(PQRS) = 24cm2

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