Question

Angle S = ____ degrees!
please help if you understand

Answer 1

45°

Explanation:

MA is the diameter of the circle.

`\therefore m\widehat {MTA} =180\degree`

`m\widehat {TA} =m\widehat {MTA} -m\widehat {MT}`

`\therefore m\widehat {MT} =180\degree -45\degree`

`\therefore m\widehat {MT} =135\degree`

`m\angle S =(1)/(2) (135-45)\degree`

`m\angle S =(1)/(2) * 90\degree`

`m\angle S =45\degree`