Question

ving !
D
10 cm
10cm
1) Find the side and perimeter of a square whose diagonal is 10 cm.
Solution :
Let O ABCD be the given square.
AC
Let the side of the square
be 'x'. cm.
. AB = BC = x cm
If A ABC,
ZABC=O
(Angle of a square)
..By D theorem,
AC2 = AB2=
:.102 = x2 +
..O = 2x2
x cm
=
100
:.x2 =
2
.:.x2 = 0
..x=
..AB=
:. side of square is 5v2 cm.
perimeter of a square = 4 x
= 4 X
cm.
=
cm
Ans: side of a square is
cm and its perimeter is o
Promo that​

Answer 1

Answer:

side of the square is 5√2 and perimeter of the square is 20√2