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Verified answer
1/2 pjg alas = √13^2 - 12^2= √169 - 144
= √25 = 5cm
pjg alas= 2 x 5 = 10cm
Luas alas = sisi xsisi
= 10 x 10 = 100 cm ^2
Luas per mukaan limas
= Luas alas + 4 x Luas segitiga
= 100 + 4 x 1/2 x 10 x 13
= 100 + 4 x 65
= 100 + 260
= 360 cm^2