Which statement is true about the product square root of 2(5 + square root of 8)?

it is rational and equal to 7.

it is rational and equal to 9.

it is irrational and equal to 4 + square root of 10.

it is irrational and equal to 4 + 5square root of 2.

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

i got 10.28 but that rounds up to 10.3