I CANT FIGURE THIS OUT!

area = 153,86

Step-by-step explanation:

r = d : 2

r = 14 : 2

r = 7

area = π x r²

area = 3,14 x 7²

area = 3,14 x 49

area = 153,86

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.