Question

is the area of the square DEFG is 100 cm square find the area of the square ABCD. please answer frds ....​

Answer 1

ar DEFG = 100 cm2

ar DEFG = side × side

100cm2 = a2

a= 10 cm

In ∆DEF-----

By Pythagoras Theorem-----

DF2 = FE2 + DE2

= 100+100

= 200

DF =✓200

= 10✓2

(((WAIT IT IS TOO LONG )))

Answer 2

Given :

area of square DEFG =100cm

SIDE DE=EF=FG=GD

DE +EF+FG+GD=100

LET DE=x

Area of square=100cm

4*side=100

4x=100

x=100/4

x=25cm

Side of square DG=1/2CD

then CD=25*2

CD=50cm

Area of SQUQRE ABCD=4*side

area=4*50

area=200cm