Welcome to Westonci.ca, where your questions are met with accurate answers from a community of experts and enthusiasts. Ask your questions and receive accurate answers from professionals with extensive experience in various fields on our platform. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform.

Sebuah kerucut padat berjari-jari 5 cm dan panjang garis pelukisnya 12 cm. Jika π = 3,14, hitunglah: a. luas permukaan kerucut. b. besar sudut dalam pada selimut tegak (juring).