Question

In trangle ABC DE parallel to BC ar = 1.8 cm EC= 5.4 cm BD = 7.2 cm then ad =​

Answer 1

Answer:

AD=2.4 cm

Step-by-step explanation:

DE || BC

So In the ΔABC and ΔADE

∠ADE= ∠B

∠ AED =∠C

So ΔABC and ΔADE are similar

hence AD/AB= AE/AC

AD/( AD+BD) =AE/(AE+EC)

let AD=x

Then

x/(x+7.2)=1.8/(1.8+5.4)

x/(x+7.2)= 1.8/7.2=1/4

4x=x+7.2

3x=7.2

x=2.4 cm

So AD=2.4 cm

Answer 2

Answer:

D = 2.4. cm

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