can 0.34721 repeating be written as a fraction and is it a terminating decimal or a repeating decimal or does nether

Yes, any decimal representation of a number with repeating digits after the decimal point is a rational number, though which fraction the given number represents depends on which block of digits is repeating.

For example, if the given number is

x = 0.347213472134721…

with (34721) as the repeating block, then

10⁵ x = 34721.347213472134721…

so that

10⁵ x - x = 34721.347213472134721… - 0.347213472134721…

(10⁵ - 1) x = 34721

x = 34721 / (10⁵ - 1) = 34721/99999

Or, if (4721) is the repeating block, then

x = 0.3472147214721…

10x = 3.472147214721…

10⁵ x = 34721.472147214721…

10⁵ x - 10x = 34721.472147214721… - 3.472147214721…

(10⁵ - 10) x = 34718

x = 34718 / (10⁵ - 10) = 17359/49995

Or, if (721) is the repeating block, then

x = 0.34721721721…

10² x = 34.721721721…

10⁵ x = 34721.721721721…

10⁵ x - 10² x = 34721.721721721… - 34.721721721…

(10⁵ - 10²) x = 34687

x = 34687 / (10⁵ - 10²) = 34687/99900

Hopefully you get the idea.

19.side- angle- side

20. angle- side- angle

step-by-step explanation: