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Posted: **Sat Jul 09, 2022 1:56 pm**

: 9 Aabc Is Right Angled At A And Has Ab Ac Point D Is On Ac So That Ab Ad Point L Is The Midpoint Of Ad Let P Be 1 (13.45 KiB) Viewed 30 times

9. AABC is right-angled at A and has AB < AC. Point D is on AC so that AB = AD. Point L is the midpoint of AD. Let P be the point on the circumcircle of AADC so that ZAPB = 90°. (a) Prove that B, P, L, and A are concyclic. (b) Prove that ZLPC = 90°.