Răspuns:
Explicație pas cu pas:
1.
a) AB²+AC²=BC² BC²=36+64=100 ⇒BC=10
b) EF²=DE²+DF²=144+81=225 EF=15
c)HI²=GH²+GI² =144+256=400 HI=20
2.
a) AB²=BC²-AC² AB²=20²-16²=4x36 AB=2x6=12
b)MP²=NP²-MN²= 25²-15²=10×40 MP=20
c) SQ²=SR²-RQ²=30²-24²=6×54=6x6x9 SQ=3x6=18