a square has a diagonal of length 8 cm . find the length of each side of the square as a surd
let the length of side of the square be a
by the Pythagoras theorem a^2 + b ^2 = c^2
taking b=a, a^2 + a^2 =2a^2
= a\(\sqrt{2}\)
a\(\sqrt{2}\)= 8
2a^2 = 64
a^2 = 32
a = \(\sqrt{32}\)
a = 4\(\sqrt{2}\)
let the length of side of the square be a
by the Pythagoras theorem a^2 + b ^2 = c^2
taking b=a, a^2 + a^2 =2a^2
= a
a= 8
2a^2 = 64
a^2 = 32
a =
a = 4