Question

Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!11

Answer 1

90

Explanation:

Answer 2

Use the note that Linear pairs have sum 180°

• TD is a straight line

`\\ \rm\rightarrowtail m\overset{\frown}{CD}+122=180`

`\\ \rm\rightarrowtail m\overset{\frown}{CD}=180-122=58°`

Now

• DB arc be x

• A whole angle is 360° or 2π

`\\ \rm\rightarrowtail x+122+58+90=360`

`\\ \rm\rightarrowtail x+270=360`

`\\ \rm\rightarrowtail m\overset{\frown}{DB}=90°`