Sum product of two irrational numbers is rational please answer me fast i am waiting

Is fgh ~ jkl? if so, identify the similarity postulate or theorem that applies.

Is it true that product of 3 consecutive natural numbers is always divisible by 6? justifyyour answer

Three cylinders have a height of 8 cm. cylinder 1 has a radius of 1 cm. cylinder 2 has a radius of 2 cm. cylinder 3 has a radius of 3 cm. find the volume of each cylinder ( ! : ”0 )