Oblicz pole i obwód trójkąta prostokątnego, wiedząc że a√3 = 8cm.
Obrazek w załączniku.
8 = a√3 /:√3
a = 8√3/3
2a = 2*8√3/3 = 16√3/3
ob = 8+8√3/3+16√3/3 = 8+24√3/3 = 8+8√3 = 8(1+√3)cm
P = (8*8√3/3):2 = 64√3/3 : 2 = 32√3/3 cm²
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8 = a√3 /:√3
a = 8√3/3
2a = 2*8√3/3 = 16√3/3
ob = 8+8√3/3+16√3/3 = 8+24√3/3 = 8+8√3 = 8(1+√3)cm
P = (8*8√3/3):2 = 64√3/3 : 2 = 32√3/3 cm²