TC ⇒ C1² = ip× pr C1 = 12×4=48 ⇒C1 =√48 = 4√3 cm                Â
TP ⇒ C2² = ip² - C1² = 12² - (4√3)² = 144 - 48 = 96   ⇒ C2 = √96 = 4√6 cm    Â
Aria = (C1×C2) / 2 = (4√3×4√6) / 2 = 24√2 cm²        Â
Perimatrul = C1+C2+ip = 4√3 + 4√6 + 12 = 4(√3+√6+4) cm