Question
Find the height $ h $ of a rhombus if side $a = 5\, \text{cm}$ and angle $\alpha = 60^o$.
Answer
$\dfrac{ 5 \sqrt{ 3}}{ 2 }\, \text{cm}$
Explanation
To find height $ h $ use formula:
$$ \sin \left( \alpha \right) = \dfrac{ h }{ a } $$After substituting $\alpha = 60^o$ and $a = 5\, \text{cm}$ we have:
$$ \sin( 60^o ) = \dfrac{ h }{ 5 } $$ $$ \frac{\sqrt{ 3 }}{ 2 } = \dfrac{ h }{ 5 } $$$$ h = \frac{\sqrt{ 3 }}{ 2 } \cdot 5 $$$$ h = \frac{ 5 \sqrt{ 3}}{ 2 } $$This page was created using
Rhombus Calculator