(1) AC + BD = AD + BC (1) AB + CD = AD - BC. 6. In the adjoining figure, measure the lengths of the sides of the triangle ABC and verify (i) AB + BC > AC (ii) BC + AC > AB (iii) AC + AB > BC.
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Ac + Bd+Ad +Bc=180 angle sum property of triangle .
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Measure with help of divide and ruler.
AB=1.8cm,BC=0.8cm,BD=2.7cmCD=1.9cm,AC=2.6cm and AD=4.5cm
AC+BD=AD+BC
⇒2.6cm+2.7cm=4.5cm+0.8cm
⇒5.3cm=5.3cm
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