👤

Sagot :

ABC un triangle rectangle en B

donc ďaprés le théorème de pythagore

on:a

[tex]ac {}^{2} =ab {}^{2} + bc {}^{2} [/tex]

[tex]bc {}^{2} = ac {}^{2} - ab {}^{2} [/tex]

[tex]bc {}^{2} = 7.3 {}^{2} - 5.5 {}^{2} [/tex]

[tex]bc {}^{2} = 53.3 - 30.3[/tex]

[tex]bc {}^{2} = 23[/tex]

[tex]bc = \sqrt{23} [/tex]

[tex]bc = 4.8[/tex]

© 2024 IDNLearn. All rights reserved.