a) daca avem laturile congruente de 18 atunci
18²-9²=2*B²
324-81=2*B²
243=2*B²
243:2=B²
B=4.5√6
b)2*B²=34²-17²
2*B=1156-289
B=√867/2
B=8,5√6
C)2*B²=7.5²-3.75²
2*B²=56.25-14.0625
2*B²=42.1875
B²=21.09375
B=√21.09375
D)2*B²=34.5²-17.25²
2*B²=1190.25-297.5625
B²=892.6875:2
B=√446.34375
fOLOSESTI PROPRIETATEA UNUI UNGHI OPUS DE 30 GRADE LATURA ESTE JUMATATE DIN IPOTENUZA,APOI PITAGORA
