poza1
1.
a=√(24²+7²)=√(576+49)=√625=25
a=√(2,5²+6²)=√(6,25+36)=√42,25=6,5
a=√(5²+6²)=√(25+36)=√61
c=√(25²-20²)=√(625-400)=√225=15
b=√(1,3²-0,5²)=√(1,69-0,25)=√1,44=1,2
2.
x=√(7,5²+4,5²)=√(56,25+20,25)=√76,5=8,74
y=√(3²-2²)=√(9-4)=√5=2,23
t=√(4²+4²)=√(16+16)=√32=5,65