Question

Yes again but pls if you don’t know don’t answer.

Answer 1

90 degree plus the 20 degree will give you angle rst

Answer 2

90deg +20deg.

Explanation:

Angle RST can be broken down into RSQ and QST, whose measures are 90 deg and 20 deg, respectively. So you just add up the two parts to get the whole.

Hope this helps!