Question

answer it i will mark you as brain list​

Answer 1

Answer :-

• ➩ AC = AD ( given )
• ➩ ∠CAB = ∠BAD ( given )
• ➩ BA = BA ( common side )

By ASA congurence criterion -

∆ ABC ≅ ∆ ABD

So, by CPCT -

➩ BC = BD

Now we have,

• BC = 1.5 cm
• BD = 1.5 cm

2 BD + ½ BC = 2 ( 1.5 ) + ½ ( 1.5 )

= 3 + 0.75

= 3.75

2 BD + ½ BC = 3.75

Answer 2

$\huge\sf\color{purple}\underline{\underline{Answer}} :$

$\sf 2 BD + \frac{1}{2} BC = 3.75$

$\huge\sf\color{purple}\underline{\underline{Solution}} :$

➩ AC = AD ( given )

➩ ∠CAB = ∠BAD ( given )

➩ BA = BA ( common side )

Hence,

$\sf \color{green}∆ ABC ≅ ∆ ABD$

➩ BC = BD ( By CPCT)

Now we have,

BC = 1.5 cm

BD = 1.5 cm

2 BD + ½ BC = 2 ( 1.5 ) + ½ ( 1.5 )

= 3 + 0.75

= 3.75

$\color{red} \sf 2 BD +\frac{1}{2}BC = 3.75$

$\color{blue}━━━━━━━━━━━━━━━━━━━━━━━━━$