Question

Giúp mình với, mình cảm ơn nhiều!!!

Answer 1

a: Theo đề, ta có:

BH+CH=25(cm)

hay BH=25-CH

Ta có: \(AH^2=HB\cdot HC\)

\(\Leftrightarrow HC\left(HC-25\right)=-144\)

\(\Leftrightarrow HC=16\left(cm\right)\)

\(\Leftrightarrow HB=9\left(cm\right)\)

\(\Leftrightarrow\left\{{}\begin{matrix}AB=\sqrt{9\cdot25}=15\left(cm\right)\\AC=\sqrt{16\cdot25}=20\left(cm\right)\end{matrix}\right.\)