Given: Parallelogram STAR, TK ⟂ SR and TL ⟂ AR

Prove: TS / TA = SK / AL

Click or touch to draw on the diagram
∠S = ∠A
TS / TA = SK / AL
∠TKS = ∠TLA
The opposite sides and angles of a parallelogram are equal
Parallelogram STAR, TK ⟂ SR and TL ⟂ AR
AA similarity
Given
Definition
△TKS ~ △TLA
All right angles are equal