Question

Determinati lungimea ipotenuzei unui triunghi dreptunghic isoscel cu cateta
a)12 cm b)20 cm c)$9\sqrt{2}$ cm d)x cm
Am nevoie urgent. VA ROG!

Answer 1

avem tr. ABC

a) AB=AC=12 cm

teorema lui Pitagora

Ip²=c²+c²

BC²=AC²+AB²

BC²=12²+12²

BC²=144+144

BC²=288

BC= √288

BC=12√2 cm

b) la fel

c) AB=AC=9√2 cm

BC²=(9√2)²+(9√2)²=162+162=324

BC=√324

BC=18 cm