Penjelasan dengan langkah-langkah:
p = (5 + √3) cm
l = (5 - √3) cm
Luas :
= p × l
= (5 + √3) × (5 - √3)
= 5² - √3²
= 25 - 3
= 22 cm²
Diagonal :
= √(p² + l²)
= √((5+√3)²+(5-√3)²)
= √((34+10√3) + (34 - 10√3))
= √(34 + 10√3 + 34 - 10√3)
= √64
= 8 cm
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Penjelasan dengan langkah-langkah:
p = (5 + √3) cm
l = (5 - √3) cm
Luas :
= p × l
= (5 + √3) × (5 - √3)
= 5² - √3²
= 25 - 3
= 22 cm²
Diagonal :
= √(p² + l²)
= √((5+√3)²+(5-√3)²)
= √((34+10√3) + (34 - 10√3))
= √(34 + 10√3 + 34 - 10√3)
= √64
= 8 cm