Cho `triangleABC` có `hat{ABC}=45^@; hat{ACB}=30^@.` `CMR: AB:BC:AC=sqrt{2}:(1+sqrt{3}):2` Lm đc `=c``h``i``l``l`  `500`

Cho `triangleABC` có `hat{ABC}=45^@; hat{ACB}=30^@.` `CMR: AB:BC:AC=sqrt{2}:(1+sqrt{3}):2` Lm đc `=c``h``i``l``l`  `500`
Ответить