The diagonals of a rhombus ABCD interesect at O. If AC=8 Cm and BD= 6 Cm, find the length of it's side. Also find it's perimenter .

ok one of the side can be the hypotenuse if diagnals are halfed
​ = 8 / 2 and 6 / 2 
= 4 and 3
= a² + b² = c²
= 4² + 3² = c
 = 16 + 9 = c 
= 25 
so square root of 25 = 5 
so one side = 5 cm 
perimetre s * 4 as all sides are equal 
= 5 *4 = 20 cm