Math, asked by niteshshaw723, 30 days ago

please answer this question

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Answered by ankitakenganur555

Answer:

1. i) AD=3.6 AB=10 AE =4.6 EC=? AC=?

ii)AB=13.3 AC=11.9 EC=5.1 AD=?

iii) AD=4 DB=7 AC=6.6 AE=?

iv) AD=8 AB=15 EC=3.5 AE=?

Step-by-step explanation:

i)according to areas similarity therom:

(AD/AB)^2=(AE/AC)^2

3.6/10=4.6/AC

AC= 4.6×10/3.6

AC=46/3.6

AC=12.7cm

AC=AE+EC

12.7=4.6+EC

EC=12.7-4.6

=8.1cm

ii)DB/AB=EC/AC

DB/13.3=5.1/11.9

DB=5.1×13.3/11.9

DB=67.83/11.9

DB=5.7cm

AB=AD+DB

AD=AB-DB

AD=13.3-5.7

AD=7.6cm

iii)AB=AD+DB

AB=4+7

AB=11cm

AD/AB=AE/AC

4/11=AE/6.6

AE=4×6.6/11

AE=4×0.6

AE=2.4cm

iv)AB=AD+DB

15=8+DB

DB=15-8

DB=7cm

AD/DB=AE/EC

8/7=AE/3.5

AE=8×3.5/7

AE=8×0.5

AE=4cm.

Answered by devilhere77

Answer:

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