Ответ:
1) S=1/2ah
S=1/2*9*8=36 (дм)
2) S=1/2ah ⇒ h = 2S/a
h=2*4/8=8/8=1 (дм)
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Ответ:
1) S=1/2ah
S=1/2*9*8=36 (дм)
2) S=1/2ah ⇒ h = 2S/a
h=2*4/8=8/8=1 (дм)