Find the area $ A $ of a rhombus if diagonal $d_1 = 9$ and diagonal $d_2 = 40$.
Answer
$A = 180$
Explanation
To find area $ A $ use formula:
$$ A = \dfrac{ d_1 \cdot d_2 }{ 2 } $$After substituting $ d_1 = 9 $ and $ d_2 = 40 $ we have:
$$ A = \dfrac{ 9 \cdot 40 }{ 2 }$$$$ A = \dfrac{ 360 }{ 2 } $$$$ A = 180 $$This page was created using
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