Question

Ajutor!!vreau imediat exercițiul ❤

Answer 1

Pitagora
$BC^{2}$=$AB^{2}$+$AC^{2}$
BC=$\sqrt{ AB^{2} + AC^{2} }$
a) BC=$\sqrt{9+16}$=$\sqrt{25}$=5cm
b) BC=$\sqrt{64+36}$=$\sqrt{100}$=10cm
c) BC=$\sqrt{25+144}$=$\sqrt{169}$=13cm
d) BC=$\sqrt{144+81}$=$\sqrt{225}$=15cm
e) BC=$\sqrt{20+16}$=$\sqrt{36}$=6cm
f) BC=$\sqrt{36+27}$=$\sqrt{63}$=3$\sqrt{7}$cm