Question

How do I solve -
B^2= (b)^2-(a)^2

Answer 1

Step-by-step explanation:

Given, (a

2

−b

2

)

2

Using , (a−b)

2

=a

2

−2ab+b

2

⇒(a

2

)

2

−2(a

2

)(b

2

)+(b

2

)

2

=a

4

−2a

2

b

2

+b

4

Answer 2

Answer:

S=  

2

a+b+c

​

=  

2

8+8+9

​

=12.5

By Heron's formula  

Δ=  

s(s−a)(s−b)(s−c)

​

 

=  

(12.5)(3.5)(4.5)(4.5)

​

 

=29.765cm  

2

Step-by-step explanation: