Question

Vă rog dau coroana, vreau rezlovarea completa!​

Answer 1

Răspuns:

ABC  masura unghiului BAC = 90

a) AB=6cm  AC=8cm  BC=10cm

BC^2 = AB^2 + AC^2

100=36+64

100=100 => ABC este triunghi dreptunghic

b) AB=5cm  AC=12cm  BC=13cm

BC^2 = AB^2 + AC^2

169=25+144

169=169 => triunghiul ABC este dreptunghic

c) AB=18cm  AC=24cm  BC=30cm

BC^2 = AB^2 + AC^2

900=324+576

900=900 => ABC - dreptunghic

Answer 2

Răspuns:

AB=6cm=>AB²=36cm²

AC=8cm=>AC²=64cm²

BC=10cm=>BC²=100cm²

100=36+64

BC²=AB²+AC² =>ΔABC-dreptunghic

_____________

AB=5cm=>AB²=25cm²

AC=12cm=>AC²=144cm²

BC=13cm=>BC²=169cm²

169=25+144

BC²=AB²+AC² => ΔABC-dreptunghic

__________

AB=18cm=>AB²=324cm²

AC=24cm=>AC²=576cm²

BC=30cm=>BC²=900cm²

900=324+576

BC²=AB²+AC²=>ΔABC-dreptunghic