a)
P = a²√3 podzielić na 3 = 5⁴√3 podzielić na 3 = 125√3 podzielić na 4 = 32,25√3 cm²
L = 5 · 3 = 15 cm
b)
5² - 3² = h²
25 - 9 = h²
16 = h²
√16 = h
4 = h
P= ½4 · 6 = 12 cm²
L = 5+ 5+ 6 = 16 cm
c)
9² - (4√3)² = h²
81-48 = h²
33 = h²
√33 = h²
P = ½√33 • 4√3 = 6√11
L = 9 + √33 = 4√3
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a)
P = a²√3 podzielić na 3 = 5⁴√3 podzielić na 3 = 125√3 podzielić na 4 = 32,25√3 cm²
L = 5 · 3 = 15 cm
b)
5² - 3² = h²
25 - 9 = h²
16 = h²
√16 = h
4 = h
P= ½4 · 6 = 12 cm²
L = 5+ 5+ 6 = 16 cm
c)
9² - (4√3)² = h²
81-48 = h²
33 = h²
√33 = h²
P = ½√33 • 4√3 = 6√11
L = 9 + √33 = 4√3