Question

preciso de ajuda para resolver essas 3 questões​

Answer 1

Resposta:

${h}^{2} = {b}^{2} + {c}^{2} \\ {h}^{2} = {12}^{2} + {15}^{2} \\ h = \sqrt{ {12}^{2} + {15}^{2} } \\ h = 3 \sqrt{41} \\ h = 19.2$

${h}^{2} = {b}^{2} + {c}^{2} \\ {13}^{2} = {5}^{2} + {c}^{2} \\ c = \sqrt{ {13}^{2} - {5}^{2} } \\ c = \sqrt{169 - 25 } \\ c = \sqrt{144} \\ c = 12$