Question

Jika panjang diagonal persegi = a akar 2 cm,buktikan bahwa panjang sisinya a cm

Answer 1

D = a√2
d^2 = (a√2)^2
s^2 + s^2 = 2a^2
2s^2 = 2a^2
s^2 = 2a^2 : 2
s = √a^2
s = a cm