Ellis Cox
06/15/2023 · Senior High School

Calcola l'area di un parallelogramma che ha la ba- se lunga 42 cm e l'altezza uguale a \( \frac{5}{7} \) della base. \( \left[1260 \mathrm{~cm}^{2}\right] \)

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Per calcolare l'area di un parallelogramma, utilizziamo la formula: \[ A = \text{base} \times \text{altezza} \] In questo caso, la base è lunga 42 cm e l'altezza è \( \frac{5}{7} \) della base. Prima calcoliamo l'altezza: \[ \text{altezza} = \frac{5}{7} \times 42 \, \text{cm} \] Calcoliamo \( \frac{5}{7} \times 42 \): \[ \frac{5 \times 42}{7} = \frac{210}{7} = 30 \, \text{cm} \] Ora che abbiamo l'altezza, possiamo calcolare l'area: \[ A = 42 \, \text{cm} \times 30 \, \text{cm} = 1260 \, \text{cm}^2 \] Quindi, l'area del parallelogramma è \( 1260 \, \text{cm}^2 \).

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L'area del parallelogramma è \( 1260 \, \text{cm}^2 \).
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