Question

Find the area of square with side (y+2) cm (using identity)

Answer 1

Answer:

Area of square is $y^{2} +4y+4$ cm^2

Step-by-step explanation:

given the side = (y+2)cm.

since the given side is in terms of variable, using standard identities will help to find the area of the square.

unit of area- (unit)^2; according to the question given it id cm^2.

Area of the square = (side)^2

The identity used :- $(a+b)^{2} = a^{2} +2ab+b^{2}$

a= y and b=2

hence, area = $(y+2)^{2} = y^{2} +2*y*2+2^{2}$

                       $(y+2)^{2} = y^{2} +4y+4$

Therefore, the area of the square is $(y+2)^{2} = y^{2} +4y+4$ cm^2