'Pass It On': The definitive biography of A.A. co-founder Bill W.

'Pass It On': The definitive biography of A.A. co-founder Bill W.

Matematika A. Luas segitiga ABC
B. Keliling segitiga ABC

A. Luas segitiga ABC
B. Keliling segitiga ABC

L=1/2×a×t

L=1/2×8×3

L=24/2

L=12 cm²

K=3×s

K=3×8

K=24 cm

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