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Verified answer
Mapel : MatematikaKelas : VIII SMP
Bab : Bangun ruang
Pembahasan :
ST = √[3² + 2²]
ST = √[9 + 4]
ST = √13
SU = √[5² + 3² + 2²]
SU = √[25 + 9 + 4]
SU = √38
Luas STU = 1/2 ST . TU
Luas STU = 1/2 . √13 . 5
Luas STU = 5/2 √13
Luas STU = 2,5√13