Question

please questions ka answer explain kar do koi​

Answer 1

Answer:

b) 20 sq. units

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Answer 2

Answer:

hence, option b is correct. 20 sq units

Step-by-step explanation:

let point A = (1,2)

so, X1= 1 and Y2 = 2

point B = (3,8)

so. X2 = 3 and Y2 = 8

AB is the diagonal of the square

AB = root over [(X2-X1)^2 + (Y2 - Y1)^2]

= √[(3-1)^2 + (8-2)^2]

=√(4+36)

=√40

=2√10

Let the side of the square is a unit

diagonal = a√2 = 2√10

so, a√2 = 2√10

a√2 = 2× √5 × √2

a = 2√5

now, area of square is a^2 unit ^2

so, (2√5)^2

= 20 sq units