Odpowiedź:
P = ( a + b ) x h x 1/2
P = (x +2x) x 6 x 1/2 = 3 x x 3 = 9x
P = 9 x 9 = 81j²
Obw = x + x -1,5 + x -1,5 + 2 x = 5x - 3
Obw = 5 x 9 -3 = 42 j
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Odpowiedź:
P = ( a + b ) x h x 1/2
P = (x +2x) x 6 x 1/2 = 3 x x 3 = 9x
P = 9 x 9 = 81j²
Obw = x + x -1,5 + x -1,5 + 2 x = 5x - 3
Obw = 5 x 9 -3 = 42 j