Tafuta eneo la nusu duara ifuatayo
Suluhu
Eneo
= ∏ x D2
8
= 1122
x
1070 x 3570
17 12 x 42
= 11 x 10 x 35
2
= 110 x 35
2
= 3850
2
= 3850
=1925
Hivyo eneo ni m2 1925
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