Question
Find the area $ A $ of a rectangle if side $a = 20\, \text{cm}$ and side $b = 5 \sqrt{ 3 }\, \text{cm}$.
Answer
$100 \sqrt{ 3 }\, \text{cm}^2$
Explanation
To find area $ A $ use formula:
$$ A = a \cdot b $$After substituting $a = 20\, \text{cm}$ and $b = 5 \sqrt{ 3 }\, \text{cm}$ we have:
$$ A = 20\, \text{cm} \cdot 5 \sqrt{ 3 }\, \text{cm} $$$$ A = 20\, \text{cm} \cdot 5 \sqrt{ 3 }\, \text{cm} $$$$ A = 100 \sqrt{ 3 }\, \text{cm}^2 $$This page was created using
Rectangle Calculator