Question

math question........

Answer 1

Heya mate,Here is ur answer

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1 ) Given that DE// BC,

Using BPT ( Basic Proportionality Theorem)

AD/DB= AE/EC

1.5/3= 1/EC

By cross multiplication

1.5×EC = 3×1

1.5 EC =3

EC=3/1.5

EC =2 cm.


2)DE//BC

Using BPT

AD/BD = AE/EC

AD/7.2 = 1.8/5.4

By cross multiplication

AD×5.4 =1.8×7.2

AD×5.4=12.96

AD=12.96/5.4

AD=2.4


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@Laughterqueen

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Answer 2

Answer:

i) Given that DE// BC,

Using  Basic Proportionality Theorem

AD/DB= AE/EC

so      1.5/3= 1/EC

          1.5  × EC = 3×1

          EC=3/1.5

          EC =2 cm. (answer)

ii)  Given that DE// BC,

Using  Basic Proportionality Theorem

so   AD/DB = AE/EC

      AD/7.2 = 1.8/5.4

      AD×5.4 =1.8×7.2

      AD×5.4=12.96

      AD=12.96/5.4

      AD=2.4cm (answer)

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