Question

Un romb are diagonala 7 cm respectiv 6 cm.Calculati aria.

Answer 1

$A_{romb}= \frac{d_1 \cdot d_2}{2}= \frac{7 \cdot 6}{2}=21~(cm^2).$

Answer 2

Aria rombului= (diagonala 1* diagonala 2)/2 Aria= 6*7/2 Aria = 3*7 Aria= 21cm²