bok a=8cm
wysokosc opuszczona na ten bok wynosi h=5cm
Pole Δ P=½·a·h=½·8cm·5cm=20cm²
dl. drugiego boku tego Δ rowna b=6cm
wysokosc opuszczona na ten bok h₁=?
P=½·b·h₁
20cm²=½·6cm·h₁
20cm²=3cm·h₁
h₁=20cm² :3cm
h₁=6²/₃ cm
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bok a=8cm
wysokosc opuszczona na ten bok wynosi h=5cm
Pole Δ P=½·a·h=½·8cm·5cm=20cm²
dl. drugiego boku tego Δ rowna b=6cm
wysokosc opuszczona na ten bok h₁=?
P=½·b·h₁
20cm²=½·6cm·h₁
20cm²=3cm·h₁
h₁=20cm² :3cm
h₁=6²/₃ cm