Jawabanmu

Jawaban paling cerdas!
2014-05-19T17:42:46+07:00
A. 1/2 * d1 * d2
    1/2 * 15 * 10 = 75
b. gambar kurang jelas
c. 1/2 * 10 * 16
    = 80
d. 1/2 * 14 * 8
    = 56