Categories Advanced The crosshairs Post author By Rik D. Tangerman Post date September 1, 2023 No Comments on The crosshairs The crosshairs A regular pentagon and two semicircles. Prove that they are orthogonal, i.e. the tangents in the intersection point are orthogonal. Scroll down for a solution to this problem. Solution Solution by Stéphane Bernard and Bob Ruyle. A regular pentagon and two semicircles. Prove that they are orthogonal, i.e. the tangents in the intersection point are orthogonal. https://t.co/fcx7ajKivO Inspired by @Ahmet____CETiN pic.twitter.com/qm0rr1DtLF— Mirangu (@Mirangu1) September 1, 2023 Please leave this field empty Don’t miss these puzzles! Subscribe to the weekly geometry puzzle e-mail. Email Address * Check your inbox or spam folder to confirm your subscription. Tags angle, circle, pentagon ← Carapace → Tip of the veil Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Δ Optionally add an image (JPEG only)