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~~~~~ : a = t
*segitiga siku-siku
• a = t = x
» L∆ = 24 cm²
» a × t × 1/2 = 24 cm²
» (x)(x)(1/2) = 24 cm²
» x²/2 = 24 cm²
» x² = 2(24 cm²)
» x² = 48 cm²
» x = ± √(48 cm²)
» x = ± √(48) cm
*Ambil " + "
»» x = + √48 cm
~~~ = √(16×3) cm
~~~ = 4√3 cm
maka alas & tinggi ∆ = 4√3 cm