contestada

In the right-angled triangle abc,ac is the hypotenuse with length 8cm, and ab=6 cm.

Work out the length of bc, giving your answer as a simplified surd.

Respuesta :

devishri1977

Answer:

Step-by-step explanation:

Hypotenuse = AC = 8 cm

AB = 6 cm

 BC² + AB² = AC²

BC² = AC² - AB²

       = 8² - 6²

       = 64 - 36

       = 28

[tex]BC =\sqrt{28}=\sqrt{2*2*7}=2\sqrt{7} = 2*2.6458 =5.2916 = 5.29[/tex]

BC = 5.29 cm

Otras preguntas