Question

I need help with these proofs. ​

Answer 1

Answer:

9)

• $BN$⊥$AD$---------Given

•  ∠$1$ and ∠$2$ are right angles----------------definition of perpendicular lines

10)

• PT bisects AY-----------------------------Given
• AR≅RY---------------------------------------definition of segment bisector

11)

• OS bisects ∠CSW--------------------given
• ∠CSO≅∠WSO-------------------------definition of angle bisector

Step-by-step explanation:

9) Given, $BN$⊥$AD$

⇒∠$1$ and ∠$2$ are right angles (definition of perpendicular lines)

10) Given, $PT$ bisects $AY$

⇒$AR$≅$RY$ (definition of segment bisector)

11) Given, $OS$ bisects ∠$CSW$

⇒∠$CSO$≅∠$WSO$ (definition of angle bisector)